#2591AC#2591AC

#2591AC is a mid, moderate cyan. Relative luminance 0.236; OKLCH L 61.0% C 0.101 H 219.1°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#2591AC
RGB	rgb(37, 145, 172)
HSL	hsl(192, 65%, 41%)
HSV	hsv(192, 78%, 67%)
CMYK	cmyk(78.5%, 15.7%, 0%, 32.5%)
CIE-LAB	lab(55.71, -20.19, -22.66)
CIE-LCH	lch(55.71, 30.35, 228.30°)
OKLab	oklab(61% -0.0781 -0.0634)
OKLCH	oklch(61% 0.101 219.1)
XYZ	xyz(18.3316, 23.6204, 42.6148)
Luminance	0.2362 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2591AC #AC4025

analogous

#25AC83 #2591AC #254DAC

triadic

#2591AC #AC2591 #91AC25

tetradic

#2591AC #8325AC #AC4025 #4DAC25

square

#2591AC #8325AC #AC4025 #4DAC25

split-complementary

#2591AC #AC254D #AC8325

monochromatic

#0F3C47 #1A677A #2591AC #3AB6D5 #6CC8DF

Accessibility & contrast

On white

3.67

#2591AC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#2591AC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2591AC

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2591AC	#FFFFFF	#000000	##000000
##2591AC	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808DAD

Deuteranopia (green-blind)

#6E80AC

Tritanopia (blue-blind)

#009A9A

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #2591ac;
/* rgb */ color: rgb(37, 145, 172);
/* oklch */ color: oklch(61.0% 0.101 219.1);

Tailwind

colors: {
  custom: {
    50: '#76b1c4',
    500: '#2591ac',
    950: '#000000',
  },
}

SCSS

$custom: #2591ac;
$custom-light: #76b1c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2591ac",
  "rgb": {
    "r": 37,
    "g": 145,
    "b": 172
  },
  "hsl": {
    "h": 192,
    "s": 64.593,
    "l": 40.98
  },
  "oklch": {
    "l": 0.60999,
    "c": 0.10057,
    "h": 219.1
  },
  "luminance": 0.23623
}

Semantic roles & 50–950 ramp

primary

#2591AC

secondary

#C67A67

accent

#6240E8

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #2591AC

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

Preview Lab → · Contrast checker → · Palette generator →