#377CA6#377CA6

#377CA6 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.1% C 0.095 H 238.5°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#377CA6
RGB	rgb(55, 124, 166)
HSL	hsl(203, 50%, 43%)
HSV	hsv(203, 67%, 65%)
CMYK	cmyk(66.9%, 25.3%, 0%, 34.9%)
CIE-LAB	lab(49.47, -8.07, -28.81)
CIE-LCH	lch(49.47, 29.92, 254.34°)
OKLab	oklab(56.07% -0.0497 -0.081)
OKLCH	oklch(56.07% 0.095 238.5)
XYZ	xyz(15.6635, 17.9791, 38.7138)
Luminance	0.1798 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CA6 #A66137

analogous

#37A698 #377CA6 #3744A6

triadic

#377CA6 #A6377C #7CA637

tetradic

#377CA6 #9837A6 #A66137 #44A637

square

#377CA6 #9837A6 #A66137 #44A637

split-complementary

#377CA6 #A63744 #A69837

monochromatic

#19374A #285A78 #377CA6 #549BC6 #82B6D6

Accessibility & contrast

On white

4.57

#377CA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#377CA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CA6

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CA6	#FFFFFF	#000000	##000000
##377CA6	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697CA8

Deuteranopia (green-blind)

#5971A5

Tritanopia (blue-blind)

#00878A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #377ca6;
/* rgb */ color: rgb(55, 124, 166);
/* oklch */ color: oklch(56.1% 0.095 238.5);

Tailwind

colors: {
  custom: {
    50: '#7aa1c0',
    500: '#377ca6',
    950: '#000000',
  },
}

SCSS

$custom: #377ca6;
$custom-light: #7aa1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#377ca6",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 166
  },
  "hsl": {
    "h": 202.703,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.56067,
    "c": 0.09502,
    "h": 238.5
  },
  "luminance": 0.17981
}

Semantic roles & 50–950 ramp

primary

#377CA6

secondary

#BF947A

accent

#834EDA

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377CA6

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

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