#377CAA#377CAA

#377CAA is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.3% C 0.099 H 240.9°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#377CAA
RGB	rgb(55, 124, 170)
HSL	hsl(204, 51%, 44%)
HSV	hsv(204, 68%, 67%)
CMYK	cmyk(67.6%, 27.1%, 0%, 33.3%)
CIE-LAB	lab(49.65, -6.69, -30.85)
CIE-LCH	lch(49.65, 31.57, 257.76°)
OKLab	oklab(56.27% -0.0483 -0.0869)
OKLCH	oklch(56.27% 0.099 240.9)
XYZ	xyz(16.0361, 18.1281, 40.6764)
Luminance	0.1813 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CAA #AA6537

analogous

#37AA9F #377CAA #3743AA

triadic

#377CAA #AA377C #7CAA37

tetradic

#377CAA #9F37AA #AA6537 #43AA37

square

#377CAA #9F37AA #AA6537 #43AA37

split-complementary

#377CAA #AA3743 #AA9F37

monochromatic

#19394E #285A7C #377CAA #569BC8 #84B6D7

Accessibility & contrast

On white

4.54

#377CAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#377CAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CAA

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CAA	#FFFFFF	#000000	##000000
##377CAA	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677CAC

Deuteranopia (green-blind)

#5771A9

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #377caa;
/* rgb */ color: rgb(55, 124, 170);
/* oklch */ color: oklch(56.3% 0.099 240.9);

Tailwind

colors: {
  custom: {
    50: '#7ba1c3',
    500: '#377caa',
    950: '#000000',
  },
}

SCSS

$custom: #377caa;
$custom-light: #7ba1c3;
$custom-dark: #000000;

JSON

{
  "hex": "#377caa",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 170
  },
  "hsl": {
    "h": 204,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.56269,
    "c": 0.09943,
    "h": 240.9
  },
  "luminance": 0.1813
}

Semantic roles & 50–950 ramp

primary

#377CAA

secondary

#C1977C

accent

#864DDB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377CAA

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

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