#2583B1#2583B1

#2583B1 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 57.8% C 0.110 H 235.2°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#2583B1
RGB	rgb(37, 131, 177)
HSL	hsl(200, 65%, 42%)
HSV	hsv(200, 79%, 69%)
CMYK	cmyk(79.1%, 26%, 0%, 30.6%)
CIE-LAB	lab(51.61, -10.74, -31.88)
CIE-LCH	lch(51.61, 33.64, 251.37°)
OKLab	oklab(57.79% -0.0626 -0.09)
OKLCH	oklch(57.79% 0.11 235.2)
XYZ	xyz(16.8119, 19.7982, 44.5218)
Luminance	0.1980 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2583B1 #B15325

analogous

#25B199 #2583B1 #253DB1

triadic

#2583B1 #B12583 #83B125

tetradic

#2583B1 #9925B1 #B15325 #3DB125

square

#2583B1 #9925B1 #B15325 #3DB125

split-complementary

#2583B1 #B1253D #B19925

monochromatic

#10384C #1A5E7E #2583B1 #3DA4D6 #6FBCE1

Accessibility & contrast

On white

4.23

#2583B1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#2583B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2583B1

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2583B1	#FFFFFF	#000000	##000000
##2583B1	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D82B3

Deuteranopia (green-blind)

#5A75B0

Tritanopia (blue-blind)

#008F93

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #2583b1;
/* rgb */ color: rgb(37, 131, 177);
/* oklch */ color: oklch(57.8% 0.110 235.2);

Tailwind

colors: {
  custom: {
    50: '#76a7c8',
    500: '#2583b1',
    950: '#000000',
  },
}

SCSS

$custom: #2583b1;
$custom-light: #76a7c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2583b1",
  "rgb": {
    "r": 37,
    "g": 131,
    "b": 177
  },
  "hsl": {
    "h": 199.714,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.57789,
    "c": 0.10962,
    "h": 235.2
  },
  "luminance": 0.198
}

Semantic roles & 50–950 ramp

primary

#2583B1

secondary

#C8896A

accent

#773FE8

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #2583B1

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

Preview Lab → · Contrast checker → · Palette generator →