#2491BB#2491BB

#2491BB is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 61.7% C 0.112 H 229.5°. Best body text is #000000 at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#2491BB
RGB	rgb(36, 145, 187)
HSL	hsl(197, 68%, 44%)
HSV	hsv(197, 81%, 73%)
CMYK	cmyk(80.7%, 22.5%, 0%, 26.7%)
CIE-LAB	lab(56.30, -15.14, -30.30)
CIE-LCH	lch(56.30, 33.87, 243.45°)
OKLab	oklab(61.67% -0.0727 -0.0853)
OKLCH	oklch(61.67% 0.112 229.5)
XYZ	xyz(19.8189, 24.2113, 50.6328)
Luminance	0.2421 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2491BB #BB4E24

analogous

#24BB99 #2491BB #2445BB

triadic

#2491BB #BB2491 #91BB24

tetradic

#2491BB #9924BB #BB4E24 #45BB24

square

#2491BB #9924BB #BB4E24 #45BB24

split-complementary

#2491BB #BB2445 #BB9924

monochromatic

#104154 #1A6988 #2491BB #42B0DB #75C5E4

Accessibility & contrast

On white

3.59

#2491BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.84

#2491BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2491BB

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2491BB	#FFFFFF	#000000	##000000
##2491BB	1.00	3.59	5.84	5.84
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.84	21.00	1.00	1.00
##000000	5.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8FBD

Deuteranopia (green-blind)

#6781BA

Tritanopia (blue-blind)

#009D9F

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #2491bb;
/* rgb */ color: rgb(36, 145, 187);
/* oklch */ color: oklch(61.7% 0.112 229.5);

Tailwind

colors: {
  custom: {
    50: '#78b1cf',
    500: '#2491bb',
    950: '#000000',
  },
}

SCSS

$custom: #2491bb;
$custom-light: #78b1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2491bb",
  "rgb": {
    "r": 36,
    "g": 145,
    "b": 187
  },
  "hsl": {
    "h": 196.689,
    "s": 67.713,
    "l": 43.725
  },
  "oklch": {
    "l": 0.61671,
    "c": 0.11206,
    "h": 229.5
  },
  "luminance": 0.24214
}

Semantic roles & 50–950 ramp

primary

#2491BB

secondary

#CC896F

accent

#6D3DEB

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0A1014

muted

#7C7F82

Preview Lab

Preview with #2491BB

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

Preview Lab → · Contrast checker → · Palette generator →