#277DAD#277DAD

#277DAD is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.109 H 238.1°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#277DAD
RGB	rgb(39, 125, 173)
HSL	hsl(201, 63%, 42%)
HSV	hsv(201, 77%, 68%)
CMYK	cmyk(77.5%, 27.7%, 0%, 32.2%)
CIE-LAB	lab(49.63, -8.50, -32.65)
CIE-LCH	lch(49.63, 33.74, 255.40°)
OKLab	oklab(56.17% -0.0573 -0.0923)
OKLCH	oklch(56.17% 0.109 238.1)
XYZ	xyz(15.7102, 18.1138, 42.1954)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277DAD #AD5727

analogous

#27AD9A #277DAD #273AAD

triadic

#277DAD #AD277D #7DAD27

tetradic

#277DAD #9A27AD #AD5727 #3AAD27

square

#277DAD #9A27AD #AD5727 #3AAD27

split-complementary

#277DAD #AD273A #AD9A27

monochromatic

#103549 #1C597B #277DAD #3E9ED3 #70B7DF

Accessibility & contrast

On white

4.54

#277DAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#277DAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277DAD

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277DAD	#FFFFFF	#000000	##000000
##277DAD	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667DAF

Deuteranopia (green-blind)

#5470AC

Tritanopia (blue-blind)

#00898E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #277dad;
/* rgb */ color: rgb(39, 125, 173);
/* oklch */ color: oklch(56.2% 0.109 238.1);

Tailwind

colors: {
  custom: {
    50: '#75a2c5',
    500: '#277dad',
    950: '#000000',
  },
}

SCSS

$custom: #277dad;
$custom-light: #75a2c5;
$custom-dark: #000000;

JSON

{
  "hex": "#277dad",
  "rgb": {
    "r": 39,
    "g": 125,
    "b": 173
  },
  "hsl": {
    "h": 201.493,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.56171,
    "c": 0.10863,
    "h": 238.1
  },
  "luminance": 0.18116
}

Semantic roles & 50–950 ramp

primary

#277DAD

secondary

#C68B6A

accent

#7D42E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #277DAD

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

Preview Lab → · Contrast checker → · Palette generator →