#377D9E#377D9E

#377D9E is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.9% C 0.086 H 231.6°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#377D9E
RGB	rgb(55, 125, 158)
HSL	hsl(199, 48%, 42%)
HSV	hsv(199, 65%, 62%)
CMYK	cmyk(65.2%, 20.9%, 0%, 38%)
CIE-LAB	lab(49.43, -11.36, -24.21)
CIE-LCH	lch(49.43, 26.74, 244.86°)
OKLab	oklab(55.92% -0.0536 -0.0677)
OKLCH	oklch(55.92% 0.086 231.6)
XYZ	xyz(15.0783, 17.9465, 35.0105)
Luminance	0.1795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377D9E #9E5837

analogous

#379E8C #377D9E #374A9E

triadic

#377D9E #9E377D #7D9E37

tetradic

#377D9E #8C379E #9E5837 #4A9E37

square

#377D9E #8C379E #9E5837 #4A9E37

split-complementary

#377D9E #9E374A #9E8C37

monochromatic

#173543 #275971 #377D9E #509EC2 #7DB7D2

Accessibility & contrast

On white

4.58

#377D9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#377D9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377D9E

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377D9E	#FFFFFF	#000000	##000000
##377D9E	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7BA0

Deuteranopia (green-blind)

#5E719E

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #377d9e;
/* rgb */ color: rgb(55, 125, 158);
/* oklch */ color: oklch(55.9% 0.086 231.6);

Tailwind

colors: {
  custom: {
    50: '#79a2ba',
    500: '#377d9e',
    950: '#000000',
  },
}

SCSS

$custom: #377d9e;
$custom-light: #79a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#377d9e",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 158
  },
  "hsl": {
    "h": 199.223,
    "s": 48.357,
    "l": 41.765
  },
  "oklch": {
    "l": 0.55921,
    "c": 0.08641,
    "h": 231.6
  },
  "luminance": 0.17948
}

Semantic roles & 50–950 ramp

primary

#377D9E

secondary

#BB8C76

accent

#7B50D8

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #377D9E

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

Preview Lab → · Contrast checker → · Palette generator →