#277F9D#277F9D

#277F9D is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 55.9% C 0.093 H 225.3°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#277F9D
RGB	rgb(39, 127, 157)
HSL	hsl(195, 60%, 38%)
HSV	hsv(195, 75%, 62%)
CMYK	cmyk(75.2%, 19.1%, 0%, 38.4%)
CIE-LAB	lab(49.55, -15.31, -23.48)
CIE-LCH	lch(49.55, 28.03, 236.89°)
OKLab	oklab(55.87% -0.0652 -0.0658)
OKLCH	oklch(55.87% 0.093 225.3)
XYZ	xyz(14.5094, 18.0427, 34.6096)
Luminance	0.1804 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277F9D #9D4527

analogous

#279D80 #277F9D #27449D

triadic

#277F9D #9D277F #7F9D27

tetradic

#277F9D #80279D #9D4527 #449D27

square

#277F9D #80279D #9D4527 #449D27

split-complementary

#277F9D #9D2744 #9D8027

monochromatic

#0F303B #1B576C #277F9D #35A6CD #66BCD9

Accessibility & contrast

On white

4.56

#277F9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#277F9D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277F9D

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277F9D	#FFFFFF	#000000	##000000
##277F9D	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7C9F

Deuteranopia (green-blind)

#5F719D

Tritanopia (blue-blind)

#008889

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #277f9d;
/* rgb */ color: rgb(39, 127, 157);
/* oklch */ color: oklch(55.9% 0.093 225.3);

Tailwind

colors: {
  custom: {
    50: '#73a4ba',
    500: '#277f9d',
    950: '#000000',
  },
}

SCSS

$custom: #277f9d;
$custom-light: #73a4ba;
$custom-dark: #000000;

JSON

{
  "hex": "#277f9d",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 157
  },
  "hsl": {
    "h": 195.254,
    "s": 60.204,
    "l": 38.431
  },
  "oklch": {
    "l": 0.5587,
    "c": 0.0926,
    "h": 225.3
  },
  "luminance": 0.18044
}

Semantic roles & 50–950 ramp

primary

#277F9D

secondary

#BF7961

accent

#6D44E3

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #277F9D

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

Preview Lab → · Contrast checker → · Palette generator →