#3981C8#3981C8

#3981C8 is a mid, vivid cyan. Relative luminance 0.207; OKLCH L 59.1% C 0.131 H 250.7°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3981C8
RGB	rgb(57, 129, 200)
HSL	hsl(210, 57%, 50%)
HSV	hsv(210, 72%, 78%)
CMYK	cmyk(71.5%, 35.5%, 0%, 21.6%)
CIE-LAB	lab(52.66, 1.24, -43.35)
CIE-LCH	lch(52.66, 43.37, 271.63°)
OKLab	oklab(59.14% -0.0431 -0.1232)
OKLCH	oklch(59.14% 0.131 250.7)
XYZ	xyz(19.9590, 20.7383, 57.5834)
Luminance	0.2074 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3981C8 #C88039

analogous

#39C8C7 #3981C8 #3939C8

triadic

#3981C8 #C83981 #81C839

tetradic

#3981C8 #C739C8 #C88039 #39C839

square

#3981C8 #C739C8 #C88039 #39C839

split-complementary

#3981C8 #C83939 #C8C739

monochromatic

#1D4469 #2B6299 #3981C8 #699FD5 #99BEE3

Accessibility & contrast

On white

4.08

#3981C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#3981C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3981C8

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3981C8	#FFFFFF	#000000	##000000
##3981C8	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6185CB

Deuteranopia (green-blind)

#4C78C7

Tritanopia (blue-blind)

#00929B

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3981c8;
/* rgb */ color: rgb(57, 129, 200);
/* oklch */ color: oklch(59.1% 0.131 250.7);

Tailwind

colors: {
  custom: {
    50: '#81a5d9',
    500: '#3981c8',
    950: '#000000',
  },
}

SCSS

$custom: #3981c8;
$custom-light: #81a5d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3981c8",
  "rgb": {
    "r": 57,
    "g": 129,
    "b": 200
  },
  "hsl": {
    "h": 209.79,
    "s": 56.522,
    "l": 50.392
  },
  "oklch": {
    "l": 0.59139,
    "c": 0.13054,
    "h": 250.7
  },
  "luminance": 0.20741
}

Semantic roles & 50–950 ramp

primary

#3981C8

secondary

#CEAE8F

accent

#9348E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #3981C8

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

Preview Lab → · Contrast checker → · Palette generator →