#377CAF#377CAF

#377CAF is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.5% C 0.105 H 243.7°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#377CAF
RGB	rgb(55, 124, 175)
HSL	hsl(206, 52%, 45%)
HSV	hsv(206, 69%, 69%)
CMYK	cmyk(68.6%, 29.1%, 0%, 31.4%)
CIE-LAB	lab(49.88, -4.95, -33.39)
CIE-LCH	lch(49.88, 33.75, 261.56°)
OKLab	oklab(56.53% -0.0467 -0.0943)
OKLCH	oklch(56.53% 0.105 243.7)
XYZ	xyz(16.5181, 18.3209, 43.2149)
Luminance	0.1832 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CAF #AF6A37

analogous

#37AFA6 #377CAF #3740AF

triadic

#377CAF #AF377C #7CAF37

tetradic

#377CAF #A637AF #AF6A37 #40AF37

square

#377CAF #A637AF #AF6A37 #40AF37

split-complementary

#377CAF #AF3740 #AFA637

monochromatic

#1A3A52 #285B80 #377CAF #599ACB #87B6D9

Accessibility & contrast

On white

4.50

#377CAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#377CAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CAF

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CAF	#FFFFFF	#000000	##000000
##377CAF	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657DB1

Deuteranopia (green-blind)

#5571AE

Tritanopia (blue-blind)

#00888E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377caf;
/* rgb */ color: rgb(55, 124, 175);
/* oklch */ color: oklch(56.5% 0.105 243.7);

Tailwind

colors: {
  custom: {
    50: '#7ba1c7',
    500: '#377caf',
    950: '#000000',
  },
}

SCSS

$custom: #377caf;
$custom-light: #7ba1c7;
$custom-dark: #000000;

JSON

{
  "hex": "#377caf",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 175
  },
  "hsl": {
    "h": 205.5,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56529,
    "c": 0.10518,
    "h": 243.7
  },
  "luminance": 0.18323
}

Semantic roles & 50–950 ramp

primary

#377CAF

secondary

#C39C7F

accent

#894CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #377CAF

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

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