#277CA8#277CA8

#277CA8 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.7% C 0.104 H 236.1°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#277CA8
RGB	rgb(39, 124, 168)
HSL	hsl(200, 62%, 41%)
HSV	hsv(200, 77%, 66%)
CMYK	cmyk(76.8%, 26.2%, 0%, 34.1%)
CIE-LAB	lab(49.10, -9.73, -30.59)
CIE-LCH	lch(49.10, 32.10, 252.36°)
OKLab	oklab(55.67% -0.0581 -0.0863)
OKLCH	oklch(55.67% 0.104 236.1)
XYZ	xyz(15.1094, 17.6720, 39.6529)
Luminance	0.1767 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277CA8 #A85327

analogous

#27A893 #277CA8 #273BA8

triadic

#277CA8 #A8277C #7CA827

tetradic

#277CA8 #9327A8 #A85327 #3BA827

square

#277CA8 #9327A8 #A85327 #3BA827

split-complementary

#277CA8 #A8273B #A89327

monochromatic

#103345 #1B5776 #277CA8 #3B9ED1 #6CB7DD

Accessibility & contrast

On white

4.63

#277CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#277CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277CA8

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277CA8	#FFFFFF	#000000	##FFFFFF
##277CA8	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677BAA

Deuteranopia (green-blind)

#556FA7

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277ca8;
/* rgb */ color: rgb(39, 124, 168);
/* oklch */ color: oklch(55.7% 0.104 236.1);

Tailwind

colors: {
  custom: {
    50: '#74a1c2',
    500: '#277ca8',
    950: '#000000',
  },
}

SCSS

$custom: #277ca8;
$custom-light: #74a1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#277ca8",
  "rgb": {
    "r": 39,
    "g": 124,
    "b": 168
  },
  "hsl": {
    "h": 200.465,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.55667,
    "c": 0.10403,
    "h": 236.1
  },
  "luminance": 0.17674
}

Semantic roles & 50–950 ramp

primary

#277CA8

secondary

#C38767

accent

#7A42E5

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #277CA8

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

Preview Lab → · Contrast checker → · Palette generator →