#2491B3#2491B3

#2491B3 is a mid, moderate cyan. Relative luminance 0.239; OKLCH L 61.3% C 0.106 H 224.2°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#2491B3
RGB	rgb(36, 145, 179)
HSL	hsl(194, 67%, 42%)
HSV	hsv(194, 80%, 70%)
CMYK	cmyk(79.9%, 19%, 0%, 29.8%)
CIE-LAB	lab(55.97, -17.91, -26.26)
CIE-LCH	lch(55.97, 31.79, 235.70°)
OKLab	oklab(61.29% -0.0757 -0.0737)
OKLCH	oklch(61.29% 0.106 224.2)
XYZ	xyz(18.9862, 23.8782, 46.2474)
Luminance	0.2388 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2491B3 #B34624

analogous

#24B38E #2491B3 #2449B3

triadic

#2491B3 #B32491 #91B324

tetradic

#2491B3 #8E24B3 #B34624 #49B324

square

#2491B3 #8E24B3 #B34624 #49B324

split-complementary

#2491B3 #B32449 #B38E24

monochromatic

#103E4D #1A6880 #2491B3 #3CB3D8 #6FC7E2

Accessibility & contrast

On white

3.64

#2491B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#2491B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2491B3

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2491B3	#FFFFFF	#000000	##000000
##2491B3	1.00	3.64	5.78	5.78
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8EB5

Deuteranopia (green-blind)

#6B80B3

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #2491b3;
/* rgb */ color: rgb(36, 145, 179);
/* oklch */ color: oklch(61.3% 0.106 224.2);

Tailwind

colors: {
  custom: {
    50: '#77b1c9',
    500: '#2491b3',
    950: '#000000',
  },
}

SCSS

$custom: #2491b3;
$custom-light: #77b1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2491b3",
  "rgb": {
    "r": 36,
    "g": 145,
    "b": 179
  },
  "hsl": {
    "h": 194.266,
    "s": 66.512,
    "l": 42.157
  },
  "oklch": {
    "l": 0.61294,
    "c": 0.10563,
    "h": 224.2
  },
  "luminance": 0.23881
}

Semantic roles & 50–950 ramp

primary

#2491B3

secondary

#C9816A

accent

#673EE9

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2491B3

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

Preview Lab → · Contrast checker → · Palette generator →