#277E9D#277E9D

#277E9D is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.6% C 0.093 H 226.3°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#277E9D
RGB	rgb(39, 126, 157)
HSL	hsl(196, 60%, 38%)
HSV	hsv(196, 75%, 62%)
CMYK	cmyk(75.2%, 19.7%, 0%, 38.4%)
CIE-LAB	lab(49.24, -14.75, -23.96)
CIE-LCH	lch(49.24, 28.14, 238.38°)
OKLab	oklab(55.62% -0.0641 -0.0672)
OKLCH	oklch(55.62% 0.093 226.3)
XYZ	xyz(14.3809, 17.7857, 34.5668)
Luminance	0.1779 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277E9D #9D4627

analogous

#279D81 #277E9D #27439D

triadic

#277E9D #9D277E #7E9D27

tetradic

#277E9D #81279D #9D4627 #439D27

square

#277E9D #81279D #9D4627 #439D27

split-complementary

#277E9D #9D2743 #9D8127

monochromatic

#0F2F3B #1B576C #277E9D #35A5CD #66BBD9

Accessibility & contrast

On white

4.61

#277E9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#277E9D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277E9D

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277E9D	#FFFFFF	#000000	##FFFFFF
##277E9D	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7C9F

Deuteranopia (green-blind)

#5D709D

Tritanopia (blue-blind)

#008788

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277e9d;
/* rgb */ color: rgb(39, 126, 157);
/* oklch */ color: oklch(55.6% 0.093 226.3);

Tailwind

colors: {
  custom: {
    50: '#73a3ba',
    500: '#277e9d',
    950: '#000000',
  },
}

SCSS

$custom: #277e9d;
$custom-light: #73a3ba;
$custom-dark: #000000;

JSON

{
  "hex": "#277e9d",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 157
  },
  "hsl": {
    "h": 195.763,
    "s": 60.204,
    "l": 38.431
  },
  "oklch": {
    "l": 0.55619,
    "c": 0.09288,
    "h": 226.3
  },
  "luminance": 0.17787
}

Semantic roles & 50–950 ramp

primary

#277E9D

secondary

#BF7A61

accent

#6E44E3

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #277E9D

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

Preview Lab → · Contrast checker → · Palette generator →