#2581A3#2581A3

#2581A3 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.6% C 0.098 H 227.6°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#2581A3
RGB	rgb(37, 129, 163)
HSL	hsl(196, 63%, 39%)
HSV	hsv(196, 77%, 64%)
CMYK	cmyk(77.3%, 20.9%, 0%, 36.1%)
CIE-LAB	lab(50.38, -14.58, -25.69)
CIE-LCH	lch(50.38, 29.55, 240.42°)
OKLab	oklab(56.6% -0.0658 -0.0722)
OKLCH	oklch(56.6% 0.098 227.6)
XYZ	xyz(15.2214, 18.7363, 37.4575)
Luminance	0.1874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2581A3 #A34725

analogous

#25A386 #2581A3 #2542A3

triadic

#2581A3 #A32581 #81A325

tetradic

#2581A3 #8625A3 #A34725 #42A325

square

#2581A3 #8625A3 #A34725 #42A325

split-complementary

#2581A3 #A32542 #A38625

monochromatic

#0E323F #1A5A71 #2581A3 #34A7D1 #66BCDC

Accessibility & contrast

On white

4.42

#2581A3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#2581A3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2581A3

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2581A3	#FFFFFF	#000000	##000000
##2581A3	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7FA5

Deuteranopia (green-blind)

#5E73A3

Tritanopia (blue-blind)

#008B8C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #2581a3;
/* rgb */ color: rgb(37, 129, 163);
/* oklch */ color: oklch(56.6% 0.098 227.6);

Tailwind

colors: {
  custom: {
    50: '#73a5be',
    500: '#2581a3',
    950: '#000000',
  },
}

SCSS

$custom: #2581a3;
$custom-light: #73a5be;
$custom-dark: #000000;

JSON

{
  "hex": "#2581a3",
  "rgb": {
    "r": 37,
    "g": 129,
    "b": 163
  },
  "hsl": {
    "h": 196.19,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.56604,
    "c": 0.09763,
    "h": 227.6
  },
  "luminance": 0.18738
}

Semantic roles & 50–950 ramp

primary

#2581A3

secondary

#C27C62

accent

#6E42E6

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #2581A3

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

Preview Lab → · Contrast checker → · Palette generator →