#2578AE#2578AE

#2578AE is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 55.0% C 0.114 H 242.2°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#2578AE
RGB	rgb(37, 120, 174)
HSL	hsl(204, 65%, 41%)
HSV	hsv(204, 79%, 68%)
CMYK	cmyk(78.7%, 31%, 0%, 31.8%)
CIE-LAB	lab(48.11, -5.43, -35.63)
CIE-LCH	lch(48.11, 36.04, 261.33°)
OKLab	oklab(54.96% -0.0532 -0.101)
OKLCH	oklch(54.96% 0.114 242.2)
XYZ	xyz(15.1164, 16.8804, 42.4977)
Luminance	0.1688 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2578AE #AE5B25

analogous

#25AEA0 #2578AE #2533AE

triadic

#2578AE #AE2578 #78AE25

tetradic

#2578AE #A025AE #AE5B25 #33AE25

square

#2578AE #A025AE #AE5B25 #33AE25

split-complementary

#2578AE #AE2533 #AEA025

monochromatic

#103249 #1A557C #2578AE #3B98D5 #6DB3E0

Accessibility & contrast

On white

4.80

#2578AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#2578AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2578AE

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2578AE	#FFFFFF	#000000	##FFFFFF
##2578AE	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F79B0

Deuteranopia (green-blind)

#4C6DAD

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2578ae;
/* rgb */ color: rgb(37, 120, 174);
/* oklch */ color: oklch(55.0% 0.114 242.2);

Tailwind

colors: {
  custom: {
    50: '#759ec6',
    500: '#2578ae',
    950: '#000000',
  },
}

SCSS

$custom: #2578ae;
$custom-light: #759ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#2578ae",
  "rgb": {
    "r": 37,
    "g": 120,
    "b": 174
  },
  "hsl": {
    "h": 203.65,
    "s": 64.929,
    "l": 41.373
  },
  "oklch": {
    "l": 0.54964,
    "c": 0.11416,
    "h": 242.2
  },
  "luminance": 0.16882
}

Semantic roles & 50–950 ramp

primary

#2578AE

secondary

#C68D68

accent

#8240E8

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2578AE

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

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