#277EC4#277EC4

#277EC4 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.7% C 0.134 H 247.6°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#277EC4
RGB	rgb(39, 126, 196)
HSL	hsl(207, 67%, 46%)
HSV	hsv(207, 80%, 77%)
CMYK	cmyk(80.1%, 35.7%, 0%, 23.1%)
CIE-LAB	lab(51.08, -0.64, -43.61)
CIE-LCH	lch(51.08, 43.62, 269.16°)
OKLab	oklab(57.69% -0.0513 -0.1242)
OKLCH	oklch(57.69% 0.134 247.6)
XYZ	xyz(18.2575, 19.3363, 54.9839)
Luminance	0.1934 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277EC4 #C46D27

analogous

#27C4BB #277EC4 #272FC4

triadic

#277EC4 #C4277E #7EC427

tetradic

#277EC4 #BB27C4 #C46D27 #2FC427

square

#277EC4 #BB27C4 #C46D27 #2FC427

split-complementary

#277EC4 #C4272F #C4BB27

monochromatic

#133C5E #1D5D91 #277EC4 #4D9CDC #80B8E6

Accessibility & contrast

On white

4.31

#277EC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#277EC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277EC4

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277EC4	#FFFFFF	#000000	##000000
##277EC4	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D81C7

Deuteranopia (green-blind)

#4673C3

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #277ec4;
/* rgb */ color: rgb(39, 126, 196);
/* oklch */ color: oklch(57.7% 0.134 247.6);

Tailwind

colors: {
  custom: {
    50: '#7aa3d6',
    500: '#277ec4',
    950: '#000000',
  },
}

SCSS

$custom: #277ec4;
$custom-light: #7aa3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#277ec4",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 196
  },
  "hsl": {
    "h": 206.752,
    "s": 66.809,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57687,
    "c": 0.13438,
    "h": 247.6
  },
  "luminance": 0.19339
}

Semantic roles & 50–950 ramp

primary

#277EC4

secondary

#CE9F79

accent

#8B3EEA

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #277EC4

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

Preview Lab → · Contrast checker → · Palette generator →