#2491B5#2491B5

#2491B5 is a mid, moderate cyan. Relative luminance 0.240; OKLCH L 61.4% C 0.107 H 225.6°. Best body text is #000000 at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#2491B5
RGB	rgb(36, 145, 181)
HSL	hsl(195, 67%, 43%)
HSV	hsv(195, 80%, 71%)
CMYK	cmyk(80.1%, 19.9%, 0%, 29%)
CIE-LAB	lab(56.05, -17.22, -27.27)
CIE-LCH	lch(56.05, 32.26, 237.73°)
OKLab	oklab(61.39% -0.0749 -0.0766)
OKLCH	oklch(61.39% 0.107 225.6)
XYZ	xyz(19.1900, 23.9597, 47.3204)
Luminance	0.2396 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2491B5 #B54824

analogous

#24B591 #2491B5 #2448B5

triadic

#2491B5 #B52491 #91B524

tetradic

#2491B5 #9124B5 #B54824 #48B524

square

#2491B5 #9124B5 #B54824 #48B524

split-complementary

#2491B5 #B52448 #B59124

monochromatic

#103F4F #1A6882 #2491B5 #3EB2D9 #71C6E3

Accessibility & contrast

On white

3.63

#2491B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.79

#2491B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2491B5

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2491B5	#FFFFFF	#000000	##000000
##2491B5	1.00	3.63	5.79	5.79
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.79	21.00	1.00	1.00
##000000	5.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8EB7

Deuteranopia (green-blind)

#6A80B5

Tritanopia (blue-blind)

#009C9D

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #2491b5;
/* rgb */ color: rgb(36, 145, 181);
/* oklch */ color: oklch(61.4% 0.107 225.6);

Tailwind

colors: {
  custom: {
    50: '#77b1cb',
    500: '#2491b5',
    950: '#000000',
  },
}

SCSS

$custom: #2491b5;
$custom-light: #77b1cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2491b5",
  "rgb": {
    "r": 36,
    "g": 145,
    "b": 181
  },
  "hsl": {
    "h": 194.897,
    "s": 66.82,
    "l": 42.549
  },
  "oklch": {
    "l": 0.61387,
    "c": 0.10714,
    "h": 225.6
  },
  "luminance": 0.23962
}

Semantic roles & 50–950 ramp

primary

#2491B5

secondary

#C9836B

accent

#693EEA

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2491B5

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

Preview Lab → · Contrast checker → · Palette generator →