#2378A6#2378A6

#2378A6 is a mid, moderate cyan. Relative luminance 0.165; OKLCH L 54.5% C 0.106 H 237.6°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#2378A6
RGB	rgb(35, 120, 166)
HSL	hsl(201, 65%, 39%)
HSV	hsv(201, 79%, 65%)
CMYK	cmyk(78.9%, 27.7%, 0%, 34.9%)
CIE-LAB	lab(47.68, -8.60, -31.65)
CIE-LCH	lch(47.68, 32.80, 254.79°)
OKLab	oklab(54.48% -0.0568 -0.0894)
OKLCH	oklch(54.48% 0.106 237.6)
XYZ	xyz(14.2898, 16.5417, 38.5087)
Luminance	0.1654 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2378A6 #A65123

analogous

#23A693 #2378A6 #2336A6

triadic

#2378A6 #A62378 #78A623

tetradic

#2378A6 #9323A6 #A65123 #36A623

square

#2378A6 #9323A6 #A65123 #36A623

split-complementary

#2378A6 #A62336 #A69323

monochromatic

#0E2F41 #185373 #2378A6 #329BD4 #65B4DF

Accessibility & contrast

On white

4.87

#2378A6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#2378A6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2378A6

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2378A6	#FFFFFF	#000000	##FFFFFF
##2378A6	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6278A8

Deuteranopia (green-blind)

#506CA5

Tritanopia (blue-blind)

#008488

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #2378a6;
/* rgb */ color: rgb(35, 120, 166);
/* oklch */ color: oklch(54.5% 0.106 237.6);

Tailwind

colors: {
  custom: {
    50: '#739ec0',
    500: '#2378a6',
    950: '#000000',
  },
}

SCSS

$custom: #2378a6;
$custom-light: #739ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#2378a6",
  "rgb": {
    "r": 35,
    "g": 120,
    "b": 166
  },
  "hsl": {
    "h": 201.069,
    "s": 65.174,
    "l": 39.412
  },
  "oklch": {
    "l": 0.54482,
    "c": 0.10593,
    "h": 237.6
  },
  "luminance": 0.16543
}

Semantic roles & 50–950 ramp

primary

#2378A6

secondary

#C48461

accent

#7B40E8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2378A6

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

Preview Lab → · Contrast checker → · Palette generator →