#2377B0#2377B0

#2377B0 is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.8% C 0.118 H 243.5°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#2377B0
RGB	rgb(35, 119, 176)
HSL	hsl(204, 67%, 41%)
HSV	hsv(204, 80%, 69%)
CMYK	cmyk(80.1%, 32.4%, 0%, 31%)
CIE-LAB	lab(47.86, -4.31, -37.19)
CIE-LCH	lch(47.86, 37.44, 263.38°)
OKLab	oklab(54.79% -0.0526 -0.1056)
OKLCH	oklch(54.79% 0.118 243.5)
XYZ	xyz(15.1234, 16.6837, 43.4891)
Luminance	0.1669 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2377B0 #B05C23

analogous

#23B0A3 #2377B0 #2331B0

triadic

#2377B0 #B02377 #77B023

tetradic

#2377B0 #A323B0 #B05C23 #31B023

square

#2377B0 #A323B0 #B05C23 #31B023

split-complementary

#2377B0 #B02331 #B0A323

monochromatic

#0F324A #19547D #2377B0 #3997D8 #6CB2E2

Accessibility & contrast

On white

4.84

#2377B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#2377B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2377B0

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2377B0	#FFFFFF	#000000	##FFFFFF
##2377B0	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C79B2

Deuteranopia (green-blind)

#496CAF

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2377b0;
/* rgb */ color: rgb(35, 119, 176);
/* oklch */ color: oklch(54.8% 0.118 243.5);

Tailwind

colors: {
  custom: {
    50: '#759ec8',
    500: '#2377b0',
    950: '#000000',
  },
}

SCSS

$custom: #2377b0;
$custom-light: #759ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2377b0",
  "rgb": {
    "r": 35,
    "g": 119,
    "b": 176
  },
  "hsl": {
    "h": 204.255,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.54786,
    "c": 0.11794,
    "h": 243.5
  },
  "luminance": 0.16686
}

Semantic roles & 50–950 ramp

primary

#2377B0

secondary

#C88E67

accent

#833EEA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2377B0

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

Preview Lab → · Contrast checker → · Palette generator →