#2491B2#2491B2

#2491B2 is a mid, moderate cyan. Relative luminance 0.238; OKLCH L 61.2% C 0.105 H 223.5°. Best body text is #000000 at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#2491B2
RGB	rgb(36, 145, 178)
HSL	hsl(194, 66%, 42%)
HSV	hsv(194, 80%, 70%)
CMYK	cmyk(79.8%, 18.5%, 0%, 30.2%)
CIE-LAB	lab(55.93, -18.26, -25.75)
CIE-LCH	lch(55.93, 31.57, 234.67°)
OKLab	oklab(61.25% -0.0761 -0.0722)
OKLCH	oklch(61.25% 0.105 223.5)
XYZ	xyz(18.8855, 23.8379, 45.7167)
Luminance	0.2384 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2491B2 #B24524

analogous

#24B28C #2491B2 #244AB2

triadic

#2491B2 #B22491 #91B224

tetradic

#2491B2 #8C24B2 #B24524 #4AB224

square

#2491B2 #8C24B2 #B24524 #4AB224

split-complementary

#2491B2 #B2244A #B28C24

monochromatic

#0F3E4C #1A687F #2491B2 #3CB3D8 #6FC7E2

Accessibility & contrast

On white

3.64

#2491B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.77

#2491B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2491B2

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2491B2	#FFFFFF	#000000	##000000
##2491B2	1.00	3.64	5.77	5.77
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.77	21.00	1.00	1.00
##000000	5.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8EB4

Deuteranopia (green-blind)

#6C80B2

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #2491b2;
/* rgb */ color: rgb(36, 145, 178);
/* oklch */ color: oklch(61.2% 0.105 223.5);

Tailwind

colors: {
  custom: {
    50: '#77b1c9',
    500: '#2491b2',
    950: '#000000',
  },
}

SCSS

$custom: #2491b2;
$custom-light: #77b1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2491b2",
  "rgb": {
    "r": 36,
    "g": 145,
    "b": 178
  },
  "hsl": {
    "h": 193.944,
    "s": 66.355,
    "l": 41.961
  },
  "oklch": {
    "l": 0.61249,
    "c": 0.1049,
    "h": 223.5
  },
  "luminance": 0.2384
}

Semantic roles & 50–950 ramp

primary

#2491B2

secondary

#C88069

accent

#663FE9

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2491B2

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

Preview Lab → · Contrast checker → · Palette generator →