#377FAF#377FAF

#377FAF is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.2% C 0.103 H 241.1°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#377FAF
RGB	rgb(55, 127, 175)
HSL	hsl(204, 52%, 45%)
HSV	hsv(204, 69%, 69%)
CMYK	cmyk(68.6%, 27.4%, 0%, 31.4%)
CIE-LAB	lab(50.79, -6.71, -31.98)
CIE-LCH	lch(50.79, 32.67, 258.15°)
OKLab	oklab(57.24% -0.0498 -0.0901)
OKLCH	oklch(57.24% 0.103 241.1)
XYZ	xyz(16.8998, 19.0843, 43.3421)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FAF #AF6737

analogous

#37AFA3 #377FAF #3743AF

triadic

#377FAF #AF377F #7FAF37

tetradic

#377FAF #A337AF #AF6737 #43AF37

square

#377FAF #A337AF #AF6737 #43AF37

split-complementary

#377FAF #AF3743 #AFA337

monochromatic

#1A3B52 #285D80 #377FAF #599DCB #87B8D9

Accessibility & contrast

On white

4.36

#377FAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#377FAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FAF

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FAF	#FFFFFF	#000000	##000000
##377FAF	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697FB1

Deuteranopia (green-blind)

#5974AE

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #377faf;
/* rgb */ color: rgb(55, 127, 175);
/* oklch */ color: oklch(57.2% 0.103 241.1);

Tailwind

colors: {
  custom: {
    50: '#7ca4c7',
    500: '#377faf',
    950: '#000000',
  },
}

SCSS

$custom: #377faf;
$custom-light: #7ca4c7;
$custom-dark: #000000;

JSON

{
  "hex": "#377faf",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 175
  },
  "hsl": {
    "h": 204,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.57243,
    "c": 0.10296,
    "h": 241.1
  },
  "luminance": 0.19086
}

Semantic roles & 50–950 ramp

primary

#377FAF

secondary

#C39A7F

accent

#864CDC

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #377FAF

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

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