#377AB0#377AB0

#377AB0 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.1% C 0.108 H 245.8°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#377AB0
RGB	rgb(55, 122, 176)
HSL	hsl(207, 52%, 45%)
HSV	hsv(207, 69%, 69%)
CMYK	cmyk(68.8%, 30.7%, 0%, 31%)
CIE-LAB	lab(49.33, -3.42, -34.83)
CIE-LCH	lch(49.33, 35.00, 264.40°)
OKLab	oklab(56.11% -0.0443 -0.0985)
OKLCH	oklch(56.11% 0.108 245.8)
XYZ	xyz(16.3686, 17.8641, 43.6514)
Luminance	0.1787 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AB0 #B06D37

analogous

#37B0A9 #377AB0 #373DB0

triadic

#377AB0 #B0377A #7AB037

tetradic

#377AB0 #A937B0 #B06D37 #3DB037

square

#377AB0 #A937B0 #B06D37 #3DB037

split-complementary

#377AB0 #B0373D #B0A937

monochromatic

#1A3953 #285A81 #377AB0 #5998CB #88B5DA

Accessibility & contrast

On white

4.59

#377AB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#377AB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #377AB0

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AB0	#FFFFFF	#000000	##FFFFFF
##377AB0	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627CB2

Deuteranopia (green-blind)

#5170AF

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #377ab0;
/* rgb */ color: rgb(55, 122, 176);
/* oklch */ color: oklch(56.1% 0.108 245.8);

Tailwind

colors: {
  custom: {
    50: '#7ca0c8',
    500: '#377ab0',
    950: '#000000',
  },
}

SCSS

$custom: #377ab0;
$custom-light: #7ca0c8;
$custom-dark: #000000;

JSON

{
  "hex": "#377ab0",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 176
  },
  "hsl": {
    "h": 206.777,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56109,
    "c": 0.10799,
    "h": 245.8
  },
  "luminance": 0.17866
}

Semantic roles & 50–950 ramp

primary

#377AB0

secondary

#C49E7F

accent

#8C4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #377AB0

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

Preview Lab → · Contrast checker → · Palette generator →