#277FAD#277FAD

#277FAD is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.7% C 0.107 H 236.5°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#277FAD
RGB	rgb(39, 127, 173)
HSL	hsl(201, 63%, 42%)
HSV	hsv(201, 77%, 68%)
CMYK	cmyk(77.5%, 26.6%, 0%, 32.2%)
CIE-LAB	lab(50.25, -9.66, -31.69)
CIE-LCH	lch(50.25, 33.13, 253.05°)
OKLab	oklab(56.66% -0.0593 -0.0895)
OKLCH	oklch(56.66% 0.107 236.5)
XYZ	xyz(15.9659, 18.6253, 42.2806)
Luminance	0.1863 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277FAD #AD5527

analogous

#27AD98 #277FAD #273CAD

triadic

#277FAD #AD277F #7FAD27

tetradic

#277FAD #9827AD #AD5527 #3CAD27

square

#277FAD #9827AD #AD5527 #3CAD27

split-complementary

#277FAD #AD273C #AD9827

monochromatic

#103649 #1C5A7B #277FAD #3EA0D3 #70B9DF

Accessibility & contrast

On white

4.44

#277FAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#277FAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277FAD

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277FAD	#FFFFFF	#000000	##000000
##277FAD	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697FAF

Deuteranopia (green-blind)

#5772AC

Tritanopia (blue-blind)

#008B8F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #277fad;
/* rgb */ color: rgb(39, 127, 173);
/* oklch */ color: oklch(56.7% 0.107 236.5);

Tailwind

colors: {
  custom: {
    50: '#75a4c5',
    500: '#277fad',
    950: '#000000',
  },
}

SCSS

$custom: #277fad;
$custom-light: #75a4c5;
$custom-dark: #000000;

JSON

{
  "hex": "#277fad",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 173
  },
  "hsl": {
    "h": 200.597,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.56657,
    "c": 0.10733,
    "h": 236.5
  },
  "luminance": 0.18627
}

Semantic roles & 50–950 ramp

primary

#277FAD

secondary

#C68A6A

accent

#7A42E6

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #277FAD

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

Preview Lab → · Contrast checker → · Palette generator →