#2591BC#2591BC

#2591BC is a mid, moderate cyan. Relative luminance 0.243; OKLCH L 61.7% C 0.113 H 230.3°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#2591BC
RGB	rgb(37, 145, 188)
HSL	hsl(197, 67%, 44%)
HSV	hsv(197, 80%, 74%)
CMYK	cmyk(80.3%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(56.36, -14.69, -30.77)
CIE-LCH	lch(56.36, 34.09, 244.48°)
OKLab	oklab(61.74% -0.072 -0.0866)
OKLCH	oklch(61.74% 0.113 230.3)
XYZ	xyz(19.9617, 24.2725, 51.2002)
Luminance	0.2427 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2591BC #BC5025

analogous

#25BC9C #2591BC #2546BC

triadic

#2591BC #BC2591 #91BC25

tetradic

#2591BC #9C25BC #BC5025 #46BC25

square

#2591BC #9C25BC #BC5025 #46BC25

split-complementary

#2591BC #BC2546 #BC9C25

monochromatic

#114256 #1B6A89 #2591BC #44AFDA #77C5E4

Accessibility & contrast

On white

3.59

#2591BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#2591BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2591BC

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2591BC	#FFFFFF	#000000	##000000
##2591BC	1.00	3.59	5.86	5.86
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8FBE

Deuteranopia (green-blind)

#6781BB

Tritanopia (blue-blind)

#009D9F

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #2591bc;
/* rgb */ color: rgb(37, 145, 188);
/* oklch */ color: oklch(61.7% 0.113 230.3);

Tailwind

colors: {
  custom: {
    50: '#79b1d0',
    500: '#2591bc',
    950: '#000000',
  },
}

SCSS

$custom: #2591bc;
$custom-light: #79b1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2591bc",
  "rgb": {
    "r": 37,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 197.086,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.61739,
    "c": 0.11262,
    "h": 230.3
  },
  "luminance": 0.24275
}

Semantic roles & 50–950 ramp

primary

#2591BC

secondary

#CC8B71

accent

#6F3EEA

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #2591BC

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

Preview Lab → · Contrast checker → · Palette generator →