#3981D1#3981D1

#3981D1 is a mid, vivid cyan. Relative luminance 0.212; OKLCH L 59.7% C 0.142 H 253.3°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#3981D1
RGB	rgb(57, 129, 209)
HSL	hsl(212, 62%, 52%)
HSV	hsv(212, 73%, 82%)
CMYK	cmyk(72.7%, 38.3%, 0%, 18%)
CIE-LAB	lab(53.14, 4.47, -47.71)
CIE-LCH	lch(53.14, 47.92, 275.35°)
OKLab	oklab(59.67% -0.0408 -0.136)
OKLCH	oklch(59.67% 0.142 253.3)
XYZ	xyz(21.0419, 21.1715, 63.2868)
Luminance	0.2117 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3981D1 #D18939

analogous

#39CDD1 #3981D1 #3D39D1

triadic

#3981D1 #D13981 #81D139

tetradic

#3981D1 #D139CD #D18939 #39D13D

square

#3981D1 #D139CD #D18939 #39D13D

split-complementary

#3981D1 #D13D39 #CDD139

monochromatic

#1B4575 #2763A6 #3981D1 #6BA1DD #9CC0E8

Accessibility & contrast

On white

4.01

#3981D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#3981D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3981D1

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3981D1	#FFFFFF	#000000	##000000
##3981D1	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C87D4

Deuteranopia (green-blind)

#4478CF

Tritanopia (blue-blind)

#00949F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3981d1;
/* rgb */ color: rgb(57, 129, 209);
/* oklch */ color: oklch(59.7% 0.142 253.3);

Tailwind

colors: {
  custom: {
    50: '#82a5df',
    500: '#3981d1',
    950: '#000000',
  },
}

SCSS

$custom: #3981d1;
$custom-light: #82a5df;
$custom-dark: #000000;

JSON

{
  "hex": "#3981d1",
  "rgb": {
    "r": 57,
    "g": 129,
    "b": 209
  },
  "hsl": {
    "h": 211.579,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.59665,
    "c": 0.14197,
    "h": 253.3
  },
  "luminance": 0.21174
}

Semantic roles & 50–950 ramp

primary

#3981D1

secondary

#D4B592

accent

#9842E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3981D1

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

Preview Lab → · Contrast checker → · Palette generator →