#277BAD#277BAD

#277BAD is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.7% C 0.110 H 239.8°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#277BAD
RGB	rgb(39, 123, 173)
HSL	hsl(202, 63%, 42%)
HSV	hsv(202, 77%, 68%)
CMYK	cmyk(77.5%, 28.9%, 0%, 32.2%)
CIE-LAB	lab(49.02, -7.34, -33.61)
CIE-LCH	lch(49.02, 34.40, 257.68°)
OKLab	oklab(55.69% -0.0554 -0.0951)
OKLCH	oklch(55.69% 0.11 239.8)
XYZ	xyz(15.4595, 17.6125, 42.1118)
Luminance	0.1761 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277BAD #AD5927

analogous

#27AD9C #277BAD #2738AD

triadic

#277BAD #AD277B #7BAD27

tetradic

#277BAD #9C27AD #AD5927 #38AD27

square

#277BAD #9C27AD #AD5927 #38AD27

split-complementary

#277BAD #AD2738 #AD9C27

monochromatic

#103449 #1C577B #277BAD #3E9CD3 #70B5DF

Accessibility & contrast

On white

4.64

#277BAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#277BAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277BAD

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277BAD	#FFFFFF	#000000	##FFFFFF
##277BAD	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637BAF

Deuteranopia (green-blind)

#516FAC

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #277bad;
/* rgb */ color: rgb(39, 123, 173);
/* oklch */ color: oklch(55.7% 0.110 239.8);

Tailwind

colors: {
  custom: {
    50: '#75a1c5',
    500: '#277bad',
    950: '#000000',
  },
}

SCSS

$custom: #277bad;
$custom-light: #75a1c5;
$custom-dark: #000000;

JSON

{
  "hex": "#277bad",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 173
  },
  "hsl": {
    "h": 202.388,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.55686,
    "c": 0.11005,
    "h": 239.8
  },
  "luminance": 0.17614
}

Semantic roles & 50–950 ramp

primary

#277BAD

secondary

#C68C6A

accent

#7F42E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #277BAD

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

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