#2581A7#2581A7

#2581A7 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 56.8% C 0.101 H 230.5°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#2581A7
RGB	rgb(37, 129, 167)
HSL	hsl(198, 64%, 40%)
HSV	hsv(198, 78%, 65%)
CMYK	cmyk(77.8%, 22.8%, 0%, 34.5%)
CIE-LAB	lab(50.55, -13.18, -27.75)
CIE-LCH	lch(50.55, 30.72, 244.60°)
OKLab	oklab(56.8% -0.0643 -0.0781)
OKLCH	oklch(56.8% 0.101 230.5)
XYZ	xyz(15.5854, 18.8820, 39.3749)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2581A7 #A74B25

analogous

#25A78C #2581A7 #2540A7

triadic

#2581A7 #A72581 #81A725

tetradic

#2581A7 #8C25A7 #A74B25 #40A725

square

#2581A7 #8C25A7 #A74B25 #40A725

split-complementary

#2581A7 #A72540 #A78C25

monochromatic

#0F3443 #1A5A75 #2581A7 #37A5D3 #69BCDE

Accessibility & contrast

On white

4.40

#2581A7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#2581A7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2581A7

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2581A7	#FFFFFF	#000000	##000000
##2581A7	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7FA9

Deuteranopia (green-blind)

#5C73A6

Tritanopia (blue-blind)

#008B8E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #2581a7;
/* rgb */ color: rgb(37, 129, 167);
/* oklch */ color: oklch(56.8% 0.101 230.5);

Tailwind

colors: {
  custom: {
    50: '#74a5c1',
    500: '#2581a7',
    950: '#000000',
  },
}

SCSS

$custom: #2581a7;
$custom-light: #74a5c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2581a7",
  "rgb": {
    "r": 37,
    "g": 129,
    "b": 167
  },
  "hsl": {
    "h": 197.538,
    "s": 63.725,
    "l": 40
  },
  "oklch": {
    "l": 0.56797,
    "c": 0.10111,
    "h": 230.5
  },
  "luminance": 0.18884
}

Semantic roles & 50–950 ramp

primary

#2581A7

secondary

#C48064

accent

#7141E7

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #2581A7

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

Preview Lab → · Contrast checker → · Palette generator →