#277DC4#277DC4

#277DC4 is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.5% C 0.135 H 248.1°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#277DC4
RGB	rgb(39, 125, 196)
HSL	hsl(207, 67%, 46%)
HSV	hsv(207, 80%, 77%)
CMYK	cmyk(80.1%, 36.2%, 0%, 23.1%)
CIE-LAB	lab(50.78, -0.03, -44.08)
CIE-LCH	lch(50.78, 44.08, 269.96°)
OKLab	oklab(57.46% -0.0504 -0.1256)
OKLCH	oklch(57.46% 0.135 248.1)
XYZ	xyz(18.1303, 19.0819, 54.9415)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277DC4 #C46E27

analogous

#27C4BC #277DC4 #272EC4

triadic

#277DC4 #C4277D #7DC427

tetradic

#277DC4 #BC27C4 #C46E27 #2EC427

square

#277DC4 #BC27C4 #C46E27 #2EC427

split-complementary

#277DC4 #C4272E #C4BC27

monochromatic

#133C5E #1D5C91 #277DC4 #4D9BDC #80B8E6

Accessibility & contrast

On white

4.36

#277DC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#277DC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277DC4

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277DC4	#FFFFFF	#000000	##000000
##277DC4	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C81C7

Deuteranopia (green-blind)

#4472C3

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #277dc4;
/* rgb */ color: rgb(39, 125, 196);
/* oklch */ color: oklch(57.5% 0.135 248.1);

Tailwind

colors: {
  custom: {
    50: '#7aa2d6',
    500: '#277dc4',
    950: '#000000',
  },
}

SCSS

$custom: #277dc4;
$custom-light: #7aa2d6;
$custom-dark: #000000;

JSON

{
  "hex": "#277dc4",
  "rgb": {
    "r": 39,
    "g": 125,
    "b": 196
  },
  "hsl": {
    "h": 207.134,
    "s": 66.809,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57455,
    "c": 0.13534,
    "h": 248.1
  },
  "luminance": 0.19084
}

Semantic roles & 50–950 ramp

primary

#277DC4

secondary

#CE9F79

accent

#8C3EEA

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #277DC4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →