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#0199eb

a balanced, electric blue · cool · closest name: Dodger Blue

RGB
1, 153, 235
HSL
201°, 99%, 46%
CMYK
100, 35, 0, 8
Luminance
0.2879

At a glance

Every number on this page in one read: what #0199eb is made of, how bright it looks, and which way it leans.

Hex
#0199eb
Hue
201°
blue
Saturation
99%
electric
Lightness
46%
balanced
Brightness
92%
HSV value
Perceived
56%
weighted brightness
Luminance
0.2879
WCAG relative
Temperature
Cool
96/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
6.76:1
Closest name
Dodger Blue
ΔE2000 5.7
Where it sits
Hue201° of 360°
Saturation99%
Lightness46%
Temperature
Warm ← → Cool96% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Every format

HEX#0199eb
RGBrgb(1, 153, 235)
HSLhsl(201, 99%, 46%)
CMYKcmyk(100%, 35%, 0%, 8%)
LABlab(60.6 -3.9 -50.5)
LCHlch(60.6 50.6 265.5)
OKLCHoklch(0.657 0.161 243.6)
Decimal104939
Display P3color(display-p3 0.004 0.600 0.922)

Copy-ready code

/* CSS */
color: #0199eb;
background-color: #0199eb;
/* Tailwind (arbitrary) */
class="text-[#0199eb] bg-[#0199eb]"
/* SCSS */
$brand: #0199eb;
/* SwiftUI */
Color(red: 0.004, green: 0.600, blue: 0.922)
/* Android */
Color.parseColor("#0199eb")
/* Flutter */
Color(0xFF0199EB)
/* Python / OpenCV (BGR) */
(235, 153, 1)

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #0199eb · 6.76:1
Use #000000AA at every size, AAA for large text only.
Aa
White text · 3.11:1
AA fail · AA large pass · AAA fail
Aa
Black text · 6.76:1 · recommended
AA pass · AA large pass · AAA fail
Reading the other direction: #0199eb as text scores 3.11:1 on white and 6.76:1 on black.

Accessibility — WCAG contrast

Aa
#0199eb on white: 3.11:1
AA ✗ fail · AA-large · AAA
Aa
#0199eb on black: 6.76:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #719CEE
deuteranopia · #528AE9
tritanopia · #00ADB7

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #0199eb is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F1F9FE
#E3F3FC
#C0E7FB
#8FD8FF
#57C4FE
#1FB0FE
#0199eb
#0184CB
#016AA3
#054E75
#033149
Base = 600Lightest = 50 · #F1F9FEDarkest = 950 · #033149
:root {
  --brand-50: #F1F9FE;
  --brand-100: #E3F3FC;
  --brand-200: #C0E7FB;
  --brand-300: #8FD8FF;
  --brand-400: #57C4FE;
  --brand-500: #1FB0FE;
  --brand-600: #0199eb;
  --brand-700: #0184CB;
  --brand-800: #016AA3;
  --brand-900: #054E75;
  --brand-950: #033149;
  --brand: #0199eb;
  --brand-ink: #000000;
}

Colors that work with #0199eb

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4F8FA
Tinted page background
Border#C0DDED
Hairlines and dividers
Muted text#4B7F9B
Captions on the surface
Accent#EC1800
Second voice, not a rival
Dark variant#01537F
Hover, pressed, headers
Light variant#E6F6FF
Selected rows, tints
Dark surface#141F24
Dark-mode background
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

How to use #0199eb

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Headings from 24px up on white
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
Use with care
  • Small text on white — under 4.5:1
  • Full-page backgrounds — tiring over long sessions
  • Pairing with a same-lightness hue — edges vibrate

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#EB5301
Analogous left#01EBC8
Analogous right#0124EB
Split-complement 1#EB0124
Split-complement 2#EBC801
Triadic 1#EB0199
Triadic 2#99EB01
Tetradic#C801EB

RGB percentages

Red0.4%
Green60.0%
Blue92.2%

CMYK percentages

Cyan99.6%
Magenta34.9%
Yellow0.0%
Key (black)7.8%

Color previews

#0199eb text on a black background

contrast 6.76:1

Card sample

#0199eb text on a white background

contrast 3.11:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #0199eb;
Background color
Panel with #0199eb background
background-color: #0199eb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #0199eb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(1, 153, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(1, 153, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0199eb;
background: linear-gradient(135deg, #0199eb, #0501EB);

Monochromatic scale

Palettes built from #0199eb

Shades — darker

Tints — lighter

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#0199eb in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

#0199eb, answered

What color is #0199eb?

#0199eb is a balanced electric blue, closest to Dodger Blue (ΔE2000 5.7). It sits at 201° on the hue wheel with 99% saturation and 46% lightness, which reads as cool.

What is the RGB value of #0199eb?

rgb(1, 153, 235) — 1 red, 153 green and 235 blue out of 255, or 0.4% / 60% / 92.2% by channel.

Is #0199eb a light or a dark color?

It is a mid-tone. Relative luminance is 0.2879 and perceived brightness is 56%, so black text on it reaches 6.76:1.

Should I use black or white text on #0199eb?

Black. It scores 6.76:1 against #0199eb, versus 3.11:1 for white — AA at any size.

What is the complementary color of #0199eb?

#EB5301 sits directly opposite on the wheel. Softer options are the split-complements #EB0124 and #EBC801, which give the same contrast with far less vibration.

What colors go well with #0199eb?

For interface work: #F4F8FA as the surface, #C0DDED for borders, #4B7F9B for secondary text, #EC1800 as an accent and #01537F for hover and pressed states. For a palette, the analogous pair #01EBC8 and #0124EB stays calm, while #EB5301 is the loudest partner.

What is #0199eb in CMYK for printing?

cmyk(100%, 35%, 0%, 8%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #0199eb warm or cool?

Cool — it scores 96 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #01EBE7; nudged cooler, #0078D3.

Work with #0199eb in the Color Lab