#2580BC#2580BC

#2580BC is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 57.7% C 0.124 H 243.0°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#2580BC
RGB	rgb(37, 128, 188)
HSL	hsl(204, 67%, 44%)
HSV	hsv(204, 80%, 74%)
CMYK	cmyk(80.3%, 31.9%, 0%, 26.3%)
CIE-LAB	lab(51.22, -5.00, -38.81)
CIE-LCH	lch(51.22, 39.13, 262.66°)
OKLab	oklab(57.65% -0.0562 -0.1102)
OKLCH	oklch(57.65% 0.124 243)
XYZ	xyz(17.5557, 19.4603, 50.3982)
Luminance	0.1946 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2580BC #BC6125

analogous

#25BCAD #2580BC #2535BC

triadic

#2580BC #BC2580 #80BC25

tetradic

#2580BC #AD25BC #BC6125 #35BC25

square

#2580BC #AD25BC #BC6125 #35BC25

split-complementary

#2580BC #BC2535 #BCAD25

monochromatic

#113A56 #1B5D89 #2580BC #449FDA #77B9E4

Accessibility & contrast

On white

4.29

#2580BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#2580BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2580BC

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2580BC	#FFFFFF	#000000	##000000
##2580BC	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6482BF

Deuteranopia (green-blind)

#4F74BB

Tritanopia (blue-blind)

#008F95

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #2580bc;
/* rgb */ color: rgb(37, 128, 188);
/* oklch */ color: oklch(57.7% 0.124 243.0);

Tailwind

colors: {
  custom: {
    50: '#78a4d0',
    500: '#2580bc',
    950: '#000000',
  },
}

SCSS

$custom: #2580bc;
$custom-light: #78a4d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2580bc",
  "rgb": {
    "r": 37,
    "g": 128,
    "b": 188
  },
  "hsl": {
    "h": 203.841,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.57653,
    "c": 0.12369,
    "h": 243
  },
  "luminance": 0.19462
}

Semantic roles & 50–950 ramp

primary

#2580BC

secondary

#CC9571

accent

#823EEA

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A0F14

muted

#7C7F82

Preview Lab

Preview with #2580BC

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

Preview Lab → · Contrast checker → · Palette generator →