#377A9D#377A9D

#377A9D is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.1% C 0.087 H 234.2°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#377A9D
RGB	rgb(55, 122, 157)
HSL	hsl(201, 48%, 42%)
HSV	hsv(201, 65%, 62%)
CMYK	cmyk(65%, 22.3%, 0%, 38.4%)
CIE-LAB	lab(48.47, -9.98, -25.11)
CIE-LCH	lch(48.47, 27.02, 248.33°)
OKLab	oklab(55.14% -0.0507 -0.0704)
OKLCH	oklch(55.14% 0.087 234.2)
XYZ	xyz(14.6185, 17.1641, 34.4343)
Luminance	0.1717 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377A9D #9D5A37

analogous

#379D8D #377A9D #37479D

triadic

#377A9D #9D377A #7A9D37

tetradic

#377A9D #8D379D #9D5A37 #479D37

square

#377A9D #8D379D #9D5A37 #479D37

split-complementary

#377A9D #9D3747 #9D8D37

monochromatic

#173442 #275770 #377A9D #509AC2 #7DB4D1

Accessibility & contrast

On white

4.74

#377A9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#377A9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #377A9D

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377A9D	#FFFFFF	#000000	##FFFFFF
##377A9D	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69799F

Deuteranopia (green-blind)

#5B6F9C

Tritanopia (blue-blind)

#008386

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #377a9d;
/* rgb */ color: rgb(55, 122, 157);
/* oklch */ color: oklch(55.1% 0.087 234.2);

Tailwind

colors: {
  custom: {
    50: '#79a0ba',
    500: '#377a9d',
    950: '#000000',
  },
}

SCSS

$custom: #377a9d;
$custom-light: #79a0ba;
$custom-dark: #000000;

JSON

{
  "hex": "#377a9d",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 157
  },
  "hsl": {
    "h": 200.588,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.55139,
    "c": 0.08673,
    "h": 234.2
  },
  "luminance": 0.17166
}

Semantic roles & 50–950 ramp

primary

#377A9D

secondary

#BB8D75

accent

#7F50D8

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #377A9D

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

Preview Lab → · Contrast checker → · Palette generator →