#2591C4#2591C4

#2591C4 is a light, vivid cyan. Relative luminance 0.246; OKLCH L 62.1% C 0.120 H 234.8°. Best body text is #000000 at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#2591C4
RGB	rgb(37, 145, 196)
HSL	hsl(199, 68%, 46%)
HSV	hsv(199, 81%, 77%)
CMYK	cmyk(81.1%, 26%, 0%, 23.1%)
CIE-LAB	lab(56.71, -11.87, -34.75)
CIE-LCH	lch(56.71, 36.72, 251.15°)
OKLab	oklab(62.14% -0.0692 -0.0981)
OKLCH	oklch(62.14% 0.12 234.8)
XYZ	xyz(20.8481, 24.6270, 55.8685)
Luminance	0.2463 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2591C4 #C45825

analogous

#25C4A7 #2591C4 #2542C4

triadic

#2591C4 #C42591 #91C425

tetradic

#2591C4 #A725C4 #C45825 #42C425

square

#2591C4 #A725C4 #C45825 #42C425

split-complementary

#2591C4 #C42542 #C4A725

monochromatic

#12455D #1B6B91 #2591C4 #49ADDD #7DC5E6

Accessibility & contrast

On white

3.54

#2591C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.93

#2591C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2591C4

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2591C4	#FFFFFF	#000000	##000000
##2591C4	1.00	3.54	5.93	5.93
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.93	21.00	1.00	1.00
##000000	5.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7890C6

Deuteranopia (green-blind)

#6382C3

Tritanopia (blue-blind)

#009EA2

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #2591c4;
/* rgb */ color: rgb(37, 145, 196);
/* oklch */ color: oklch(62.1% 0.120 234.8);

Tailwind

colors: {
  custom: {
    50: '#7ab1d6',
    500: '#2591c4',
    950: '#000000',
  },
}

SCSS

$custom: #2591c4;
$custom-light: #7ab1d6;
$custom-dark: #000000;

JSON

{
  "hex": "#2591c4",
  "rgb": {
    "r": 37,
    "g": 145,
    "b": 196
  },
  "hsl": {
    "h": 199.245,
    "s": 68.24,
    "l": 45.686
  },
  "oklch": {
    "l": 0.62135,
    "c": 0.12007,
    "h": 234.8
  },
  "luminance": 0.2463
}

Semantic roles & 50–950 ramp

primary

#2591C4

secondary

#CF9376

accent

#753DEB

background

#F8FAFD

surface

#EFF5FA

border

#CACFD3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #2591C4

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

Preview Lab → · Contrast checker → · Palette generator →