#277BA4#277BA4

#277BA4 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.2% C 0.101 H 234.4°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#277BA4
RGB	rgb(39, 123, 164)
HSL	hsl(200, 62%, 40%)
HSV	hsv(200, 76%, 64%)
CMYK	cmyk(76.2%, 25%, 0%, 35.7%)
CIE-LAB	lab(48.61, -10.59, -29.02)
CIE-LCH	lch(48.61, 30.89, 249.96°)
OKLab	oklab(55.22% -0.0585 -0.0818)
OKLCH	oklch(55.22% 0.101 234.4)
XYZ	xyz(14.6178, 17.2759, 37.6789)
Luminance	0.1728 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277BA4 #A45027

analogous

#27A48F #277BA4 #273DA4

triadic

#277BA4 #A4277B #7BA427

tetradic

#277BA4 #8F27A4 #A45027 #3DA427

square

#277BA4 #8F27A4 #A45027 #3DA427

split-complementary

#277BA4 #A4273D #A48F27

monochromatic

#0F3141 #1B5673 #277BA4 #389ED0 #6AB6DC

Accessibility & contrast

On white

4.71

#277BA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#277BA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277BA4

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277BA4	#FFFFFF	#000000	##FFFFFF
##277BA4	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677AA6

Deuteranopia (green-blind)

#566EA3

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #277ba4;
/* rgb */ color: rgb(39, 123, 164);
/* oklch */ color: oklch(55.2% 0.101 234.4);

Tailwind

colors: {
  custom: {
    50: '#74a1bf',
    500: '#277ba4',
    950: '#000000',
  },
}

SCSS

$custom: #277ba4;
$custom-light: #74a1bf;
$custom-dark: #000000;

JSON

{
  "hex": "#277ba4",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 164
  },
  "hsl": {
    "h": 199.68,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.55217,
    "c": 0.10056,
    "h": 234.4
  },
  "luminance": 0.17278
}

Semantic roles & 50–950 ramp

primary

#277BA4

secondary

#C28365

accent

#7843E5

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #277BA4

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

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