#3981BF#3981BF

#3981BF is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.6% C 0.119 H 247.6°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#3981BF
RGB	rgb(57, 129, 191)
HSL	hsl(208, 54%, 49%)
HSV	hsv(208, 70%, 75%)
CMYK	cmyk(70.2%, 32.5%, 0%, 25.1%)
CIE-LAB	lab(52.21, -1.97, -38.94)
CIE-LCH	lch(52.21, 38.99, 267.11°)
OKLab	oklab(58.63% -0.0456 -0.1103)
OKLCH	oklch(58.63% 0.119 247.6)
XYZ	xyz(18.9380, 20.3299, 52.2061)
Luminance	0.2033 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3981BF #BF7739

analogous

#39BFBA #3981BF #393EBF

triadic

#3981BF #BF3981 #81BF39

tetradic

#3981BF #BA39BF #BF7739 #3EBF39

square

#3981BF #BA39BF #BF7739 #3EBF39

split-complementary

#3981BF #BF393E #BFBA39

monochromatic

#1D4161 #2B6190 #3981BF #649FD1 #93BCDF

Accessibility & contrast

On white

4.14

#3981BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#3981BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3981BF

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3981BF	#FFFFFF	#000000	##000000
##3981BF	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6584C2

Deuteranopia (green-blind)

#5277BE

Tritanopia (blue-blind)

#009097

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3981bf;
/* rgb */ color: rgb(57, 129, 191);
/* oklch */ color: oklch(58.6% 0.119 247.6);

Tailwind

colors: {
  custom: {
    50: '#7fa5d2',
    500: '#3981bf',
    950: '#000000',
  },
}

SCSS

$custom: #3981bf;
$custom-light: #7fa5d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3981bf",
  "rgb": {
    "r": 57,
    "g": 129,
    "b": 191
  },
  "hsl": {
    "h": 207.761,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.58634,
    "c": 0.11937,
    "h": 247.6
  },
  "luminance": 0.20332
}

Semantic roles & 50–950 ramp

primary

#3981BF

secondary

#CAA78A

accent

#8E4ADD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3981BF

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

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