#3881CB#3881CB

#3881CB is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.3% C 0.135 H 251.4°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#3881CB
RGB	rgb(56, 129, 203)
HSL	hsl(210, 59%, 51%)
HSV	hsv(210, 72%, 80%)
CMYK	cmyk(72.4%, 36.5%, 0%, 20.4%)
CIE-LAB	lab(52.79, 2.17, -44.87)
CIE-LCH	lch(52.79, 44.92, 272.77°)
OKLab	oklab(59.28% -0.0429 -0.1277)
OKLCH	oklch(59.28% 0.135 251.4)
XYZ	xyz(20.2566, 20.8508, 59.4454)
Luminance	0.2085 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3881CB #CB8238

analogous

#38CBCB #3881CB #3838CB

triadic

#3881CB #CB3881 #81CB38

tetradic

#3881CB #CB38CB #CB8238 #38CB38

square

#3881CB #CB38CB #CB8238 #38CB38

split-complementary

#3881CB #CB3838 #CBCB38

monochromatic

#1C446C #29639D #3881CB #69A0D8 #99BEE4

Accessibility & contrast

On white

4.06

#3881CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#3881CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3881CB

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3881CB	#FFFFFF	#000000	##000000
##3881CB	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F85CE

Deuteranopia (green-blind)

#4978CA

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3881cb;
/* rgb */ color: rgb(56, 129, 203);
/* oklch */ color: oklch(59.3% 0.135 251.4);

Tailwind

colors: {
  custom: {
    50: '#81a5db',
    500: '#3881cb',
    950: '#000000',
  },
}

SCSS

$custom: #3881cb;
$custom-light: #81a5db;
$custom-dark: #000000;

JSON

{
  "hex": "#3881cb",
  "rgb": {
    "r": 56,
    "g": 129,
    "b": 203
  },
  "hsl": {
    "h": 210.204,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.59278,
    "c": 0.13468,
    "h": 251.4
  },
  "luminance": 0.20853
}

Semantic roles & 50–950 ramp

primary

#3881CB

secondary

#D0B08F

accent

#9446E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3881CB

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

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