#2491B4#2491B4

#2491B4 is a mid, moderate cyan. Relative luminance 0.239; OKLCH L 61.3% C 0.106 H 224.9°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#2491B4
RGB	rgb(36, 145, 180)
HSL	hsl(195, 67%, 42%)
HSV	hsv(195, 80%, 71%)
CMYK	cmyk(80%, 19.4%, 0%, 29.4%)
CIE-LAB	lab(56.01, -17.57, -26.77)
CIE-LCH	lch(56.01, 32.02, 236.72°)
OKLab	oklab(61.34% -0.0753 -0.0751)
OKLCH	oklch(61.34% 0.106 224.9)
XYZ	xyz(19.0877, 23.9188, 46.7819)
Luminance	0.2392 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2491B4 #B44724

analogous

#24B48F #2491B4 #2449B4

triadic

#2491B4 #B42491 #91B424

tetradic

#2491B4 #8F24B4 #B44724 #49B424

square

#2491B4 #8F24B4 #B44724 #49B424

split-complementary

#2491B4 #B42449 #B48F24

monochromatic

#103F4E #1A6881 #2491B4 #3DB2D8 #70C7E2

Accessibility & contrast

On white

3.63

#2491B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#2491B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2491B4

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2491B4	#FFFFFF	#000000	##000000
##2491B4	1.00	3.63	5.78	5.78
#FFFFFF	3.63	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)

#7E8EB6

Deuteranopia (green-blind)

#6B80B4

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #2491b4;
/* rgb */ color: rgb(36, 145, 180);
/* oklch */ color: oklch(61.3% 0.106 224.9);

Tailwind

colors: {
  custom: {
    50: '#77b1ca',
    500: '#2491b4',
    950: '#000000',
  },
}

SCSS

$custom: #2491b4;
$custom-light: #77b1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2491b4",
  "rgb": {
    "r": 36,
    "g": 145,
    "b": 180
  },
  "hsl": {
    "h": 194.583,
    "s": 66.667,
    "l": 42.353
  },
  "oklch": {
    "l": 0.61341,
    "c": 0.10638,
    "h": 224.9
  },
  "luminance": 0.23921
}

Semantic roles & 50–950 ramp

primary

#2491B4

secondary

#C9826B

accent

#683EEA

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2491B4

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

Preview Lab → · Contrast checker → · Palette generator →