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#369cf8

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

RGB
54, 156, 248
HSL
209°, 93%, 59%
CMYK
78, 37, 0, 3
Luminance
0.3134

At a glance

Every number on this page in one read: what #369cf8 is made of, how bright it looks, and which way it leans.

Hex
#369cf8
Hue
209°
blue
Saturation
93%
electric
Lightness
59%
balanced
Brightness
97%
HSV value
Perceived
58%
weighted brightness
Luminance
0.3134
WCAG relative
Temperature
Cool
99/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
7.27:1
Closest name
Dodger Blue
ΔE2000 3.9
Where it sits
Hue209° of 360°
Saturation93%
Lightness59%
Temperature
Warm ← → Cool99% 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#369cf8
RGBrgb(54, 156, 248)
HSLhsl(209, 93%, 59%)
CMYKcmyk(78%, 37%, 0%, 3%)
LABlab(62.8 2.1 -54.1)
LCHlch(62.8 54.1 272.3)
OKLCHoklch(0.679 0.164 249.9)
Decimal3579128
Display P3color(display-p3 0.212 0.612 0.973)

Copy-ready code

/* CSS */
color: #369cf8;
background-color: #369cf8;
/* Tailwind (arbitrary) */
class="text-[#369cf8] bg-[#369cf8]"
/* SCSS */
$brand: #369cf8;
/* SwiftUI */
Color(red: 0.212, green: 0.612, blue: 0.973)
/* Android */
Color.parseColor("#369cf8")
/* Flutter */
Color(0xFF369CF8)
/* Python / OpenCV (BGR) */
(248, 156, 54)

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 #369cf8 · 7.27:1
Use #000000AAA at every size.
Aa
White text · 2.89:1
AA fail · AA large fail · AAA fail
Aa
Black text · 7.27:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #369cf8 as text scores 2.89:1 on white and 7.27:1 on black.

Accessibility — WCAG contrast

Aa
#369cf8 on white: 2.89:1
AA ✗ fail · AA-large · AAA
Aa
#369cf8 on black: 7.27:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #70A1FC
deuteranopia · #5390F6
tritanopia · #00B2BE

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #369cf8 is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2F8FD
#E4F0FB
#C2DFF9
#93CAFB
#5CAFF9
#369cf8
#0880ED
#076BC5
#05559E
#094072
#052847
Base = 500Lightest = 50 · #F2F8FDDarkest = 950 · #052847
:root {
  --brand-50: #F2F8FD;
  --brand-100: #E4F0FB;
  --brand-200: #C2DFF9;
  --brand-300: #93CAFB;
  --brand-400: #5CAFF9;
  --brand-500: #369cf8;
  --brand-600: #0880ED;
  --brand-700: #076BC5;
  --brand-800: #05559E;
  --brand-900: #094072;
  --brand-950: #052847;
  --brand: #369cf8;
  --brand-ink: #000000;
}

Colors that work with #369cf8

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#C0D7ED
Hairlines and dividers
Muted text#4B759B
Captions on the surface
Accent#C92F03
Second voice, not a rival
Dark variant#04437B
Hover, pressed, headers
Light variant#E6F3FE
Selected rows, tints
Dark surface#141C24
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 #369cf8

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

Works well for
  • 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
  • Text of any size on white — fails WCAG AA
  • 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#F89236
Analogous left#36F8F3
Analogous right#363BF8
Split-complement 1#F8363B
Split-complement 2#F8F336
Triadic 1#F8369C
Triadic 2#9CF836
Tetradic#F336F8

RGB percentages

Red21.2%
Green61.2%
Blue97.3%

CMYK percentages

Cyan78.2%
Magenta37.1%
Yellow0.0%
Key (black)2.7%

Color previews

#369cf8 text on a black background

contrast 7.27:1

Card sample

#369cf8 text on a white background

contrast 2.89:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #369cf8;
Background color
Panel with #369cf8 background
background-color: #369cf8;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #369cf8;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(54, 156, 248, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(54, 156, 248, 0.45);
Border & gradient
Gradient panel
border: 3px solid #369cf8;
background: linear-gradient(135deg, #369cf8, #5136F8);

Monochromatic scale

Palettes built from #369cf8

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.

#369cf8 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.

#369cf8, answered

What color is #369cf8?

#369cf8 is a balanced electric blue, closest to Dodger Blue (ΔE2000 3.9). It sits at 209° on the hue wheel with 93% saturation and 59% lightness, which reads as cool.

What is the RGB value of #369cf8?

rgb(54, 156, 248) — 54 red, 156 green and 248 blue out of 255, or 21.2% / 61.2% / 97.3% by channel.

Is #369cf8 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3134 and perceived brightness is 58%, so black text on it reaches 7.27:1.

Should I use black or white text on #369cf8?

Black. It scores 7.27:1 against #369cf8, versus 2.89:1 for white — AAA at any size.

What is the complementary color of #369cf8?

#F89236 sits directly opposite on the wheel. Softer options are the split-complements #F8363B and #F8F336, which give the same contrast with far less vibration.

What colors go well with #369cf8?

For interface work: #F4F8FA as the surface, #C0D7ED for borders, #4B759B for secondary text, #C92F03 as an accent and #04437B for hover and pressed states. For a palette, the analogous pair #36F8F3 and #363BF8 stays calm, while #F89236 is the loudest partner.

What is #369cf8 in CMYK for printing?

cmyk(78%, 37%, 0%, 3%). 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 #369cf8 warm or cool?

Cool — it scores 99 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #3655F8; nudged cooler, #1B8AFA.

Work with #369cf8 in the Color Lab