#277AAA#277AAA

#277AAA is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.3% C 0.107 H 238.9°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#277AAA
RGB	rgb(39, 122, 170)
HSL	hsl(202, 63%, 41%)
HSV	hsv(202, 77%, 67%)
CMYK	cmyk(77.1%, 28.2%, 0%, 33.3%)
CIE-LAB	lab(48.57, -7.84, -32.57)
CIE-LCH	lch(48.57, 33.50, 256.46°)
OKLab	oklab(55.28% -0.0555 -0.0921)
OKLCH	oklch(55.28% 0.107 238.9)
XYZ	xyz(15.0491, 17.2509, 40.5590)
Luminance	0.1725 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277AAA #AA5727

analogous

#27AA98 #277AAA #2738AA

triadic

#277AAA #AA277A #7AAA27

tetradic

#277AAA #9827AA #AA5727 #38AA27

square

#277AAA #9827AA #AA5727 #38AA27

split-complementary

#277AAA #AA2738 #AA9827

monochromatic

#103346 #1C5678 #277AAA #3C9BD2 #6EB5DE

Accessibility & contrast

On white

4.72

#277AAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#277AAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277AAA

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277AAA	#FFFFFF	#000000	##FFFFFF
##277AAA	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637AAC

Deuteranopia (green-blind)

#516EA9

Tritanopia (blue-blind)

#00868B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #277aaa;
/* rgb */ color: rgb(39, 122, 170);
/* oklch */ color: oklch(55.3% 0.107 238.9);

Tailwind

colors: {
  custom: {
    50: '#75a0c3',
    500: '#277aaa',
    950: '#000000',
  },
}

SCSS

$custom: #277aaa;
$custom-light: #75a0c3;
$custom-dark: #000000;

JSON

{
  "hex": "#277aaa",
  "rgb": {
    "r": 39,
    "g": 122,
    "b": 170
  },
  "hsl": {
    "h": 201.985,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.55283,
    "c": 0.10747,
    "h": 238.9
  },
  "luminance": 0.17253
}

Semantic roles & 50–950 ramp

primary

#277AAA

secondary

#C48A69

accent

#7E42E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #277AAA

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

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