#2491B1#2491B1

#2491B1 is a mid, moderate cyan. Relative luminance 0.238; OKLCH L 61.2% C 0.104 H 222.8°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#2491B1
RGB	rgb(36, 145, 177)
HSL	hsl(194, 66%, 42%)
HSV	hsv(194, 80%, 69%)
CMYK	cmyk(79.7%, 18.1%, 0%, 30.6%)
CIE-LAB	lab(55.88, -18.60, -25.25)
CIE-LCH	lch(55.88, 31.36, 233.62°)
OKLab	oklab(61.2% -0.0765 -0.0708)
OKLCH	oklch(61.2% 0.104 222.8)
XYZ	xyz(18.7854, 23.7979, 45.1898)
Luminance	0.2380 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2491B1 #B14424

analogous

#24B18B #2491B1 #244BB1

triadic

#2491B1 #B12491 #91B124

tetradic

#2491B1 #8B24B1 #B14424 #4BB124

square

#2491B1 #8B24B1 #B14424 #4BB124

split-complementary

#2491B1 #B1244B #B18B24

monochromatic

#0F3E4B #1A677E #2491B1 #3BB4D7 #6EC7E1

Accessibility & contrast

On white

3.65

#2491B1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#2491B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2491B1

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2491B1	#FFFFFF	#000000	##000000
##2491B1	1.00	3.65	5.76	5.76
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8DB3

Deuteranopia (green-blind)

#6C80B1

Tritanopia (blue-blind)

#009B9B

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #2491b1;
/* rgb */ color: rgb(36, 145, 177);
/* oklch */ color: oklch(61.2% 0.104 222.8);

Tailwind

colors: {
  custom: {
    50: '#77b1c8',
    500: '#2491b1',
    950: '#000000',
  },
}

SCSS

$custom: #2491b1;
$custom-light: #77b1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2491b1",
  "rgb": {
    "r": 36,
    "g": 145,
    "b": 177
  },
  "hsl": {
    "h": 193.617,
    "s": 66.197,
    "l": 41.765
  },
  "oklch": {
    "l": 0.61203,
    "c": 0.10419,
    "h": 222.8
  },
  "luminance": 0.238
}

Semantic roles & 50–950 ramp

primary

#2491B1

secondary

#C87E69

accent

#653FE9

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #2491B1

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

Preview Lab → · Contrast checker → · Palette generator →