#377DA8#377DA8

#377DA8 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.4% C 0.097 H 238.8°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#377DA8
RGB	rgb(55, 125, 168)
HSL	hsl(203, 51%, 44%)
HSV	hsv(203, 67%, 66%)
CMYK	cmyk(67.3%, 25.6%, 0%, 34.1%)
CIE-LAB	lab(49.86, -7.97, -29.36)
CIE-LCH	lch(49.86, 30.42, 254.82°)
OKLab	oklab(56.41% -0.05 -0.0826)
OKLCH	oklch(56.41% 0.097 238.8)
XYZ	xyz(15.9743, 18.3049, 39.7295)
Luminance	0.1831 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DA8 #A86237

analogous

#37A89A #377DA8 #3744A8

triadic

#377DA8 #A8377D #7DA837

tetradic

#377DA8 #9A37A8 #A86237 #44A837

square

#377DA8 #9A37A8 #A86237 #44A837

split-complementary

#377DA8 #A83744 #A89A37

monochromatic

#19384C #285B7A #377DA8 #559CC7 #83B7D6

Accessibility & contrast

On white

4.51

#377DA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#377DA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DA8

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DA8	#FFFFFF	#000000	##000000
##377DA8	1.00	4.51	4.66	4.66
#FFFFFF	4.51	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)

#697DAA

Deuteranopia (green-blind)

#5A72A7

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377da8;
/* rgb */ color: rgb(55, 125, 168);
/* oklch */ color: oklch(56.4% 0.097 238.8);

Tailwind

colors: {
  custom: {
    50: '#7aa2c2',
    500: '#377da8',
    950: '#000000',
  },
}

SCSS

$custom: #377da8;
$custom-light: #7aa2c2;
$custom-dark: #000000;

JSON

{
  "hex": "#377da8",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 168
  },
  "hsl": {
    "h": 202.832,
    "s": 50.673,
    "l": 43.725
  },
  "oklch": {
    "l": 0.56408,
    "c": 0.09656,
    "h": 238.8
  },
  "luminance": 0.18307
}

Semantic roles & 50–950 ramp

primary

#377DA8

secondary

#C0957B

accent

#834EDA

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377DA8

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

Preview Lab → · Contrast checker → · Palette generator →