#2377B1#2377B1

#2377B1 is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.8% C 0.119 H 244.0°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#2377B1
RGB	rgb(35, 119, 177)
HSL	hsl(205, 67%, 42%)
HSV	hsv(205, 80%, 69%)
CMYK	cmyk(80.2%, 32.8%, 0%, 30.6%)
CIE-LAB	lab(47.91, -3.94, -37.69)
CIE-LCH	lch(47.91, 37.89, 264.03°)
OKLab	oklab(54.84% -0.0523 -0.107)
OKLCH	oklch(54.84% 0.119 244)
XYZ	xyz(15.2227, 16.7234, 44.0121)
Luminance	0.1673 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2377B1 #B15D23

analogous

#23B1A4 #2377B1 #2330B1

triadic

#2377B1 #B12377 #77B123

tetradic

#2377B1 #A423B1 #B15D23 #30B123

square

#2377B1 #A423B1 #B15D23 #30B123

split-complementary

#2377B1 #B12330 #B1A423

monochromatic

#0F324B #19557E #2377B1 #3997D8 #6CB2E2

Accessibility & contrast

On white

4.83

#2377B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#2377B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2377B1

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2377B1	#FFFFFF	#000000	##FFFFFF
##2377B1	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C79B3

Deuteranopia (green-blind)

#486CB0

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2377b1;
/* rgb */ color: rgb(35, 119, 177);
/* oklch */ color: oklch(54.8% 0.119 244.0);

Tailwind

colors: {
  custom: {
    50: '#759ec8',
    500: '#2377b1',
    950: '#000000',
  },
}

SCSS

$custom: #2377b1;
$custom-light: #759ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2377b1",
  "rgb": {
    "r": 35,
    "g": 119,
    "b": 177
  },
  "hsl": {
    "h": 204.507,
    "s": 66.981,
    "l": 41.569
  },
  "oklch": {
    "l": 0.54843,
    "c": 0.11912,
    "h": 244
  },
  "luminance": 0.16725
}

Semantic roles & 50–950 ramp

primary

#2377B1

secondary

#C88F68

accent

#843EEA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2377B1

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

Preview Lab → · Contrast checker → · Palette generator →