#2381BC#2381BC

#2381BC is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 57.8% C 0.123 H 242.0°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#2381BC
RGB	rgb(35, 129, 188)
HSL	hsl(203, 69%, 44%)
HSV	hsv(203, 81%, 74%)
CMYK	cmyk(81.4%, 31.4%, 0%, 26.3%)
CIE-LAB	lab(51.48, -5.79, -38.40)
CIE-LCH	lch(51.48, 38.84, 261.43°)
OKLab	oklab(57.85% -0.058 -0.109)
OKLCH	oklch(57.85% 0.123 242)
XYZ	xyz(17.6169, 19.6865, 50.4386)
Luminance	0.1969 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2381BC #BC5E23

analogous

#23BCAA #2381BC #2334BC

triadic

#2381BC #BC2381 #81BC23

tetradic

#2381BC #AA23BC #BC5E23 #34BC23

square

#2381BC #AA23BC #BC5E23 #34BC23

split-complementary

#2381BC #BC2334 #BCAA23

monochromatic

#103A55 #195E88 #2381BC #41A0DC #74BAE5

Accessibility & contrast

On white

4.25

#2381BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#2381BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2381BC

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2381BC	#FFFFFF	#000000	##000000
##2381BC	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6582BF

Deuteranopia (green-blind)

#5074BB

Tritanopia (blue-blind)

#009096

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #2381bc;
/* rgb */ color: rgb(35, 129, 188);
/* oklch */ color: oklch(57.8% 0.123 242.0);

Tailwind

colors: {
  custom: {
    50: '#77a5d0',
    500: '#2381bc',
    950: '#000000',
  },
}

SCSS

$custom: #2381bc;
$custom-light: #77a5d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2381bc",
  "rgb": {
    "r": 35,
    "g": 129,
    "b": 188
  },
  "hsl": {
    "h": 203.137,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.57847,
    "c": 0.12345,
    "h": 242
  },
  "luminance": 0.19689
}

Semantic roles & 50–950 ramp

primary

#2381BC

secondary

#CC936F

accent

#803CEB

background

#F7FAFC

surface

#EEF4F9

border

#C9CED2

text

#0A0F14

muted

#7C7F82

Preview Lab

Preview with #2381BC

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

Preview Lab → · Contrast checker → · Palette generator →