#3981CA#3981CA

#3981CA is a mid, vivid cyan. Relative luminance 0.208; OKLCH L 59.3% C 0.133 H 251.4°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#3981CA
RGB	rgb(57, 129, 202)
HSL	hsl(210, 58%, 51%)
HSV	hsv(210, 72%, 79%)
CMYK	cmyk(71.8%, 36.1%, 0%, 20.8%)
CIE-LAB	lab(52.77, 1.95, -44.33)
CIE-LCH	lch(52.77, 44.37, 272.52°)
OKLab	oklab(59.25% -0.0425 -0.1261)
OKLCH	oklch(59.25% 0.133 251.4)
XYZ	xyz(20.1943, 20.8324, 58.8224)
Luminance	0.2084 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3981CA #CA8239

analogous

#39C9CA #3981CA #3939CA

triadic

#3981CA #CA3981 #81CA39

tetradic

#3981CA #CA39C9 #CA8239 #39CA39

square

#3981CA #CA39C9 #CA8239 #39CA39

split-complementary

#3981CA #CA3939 #C9CA39

monochromatic

#1D446C #2A639C #3981CA #69A0D7 #9ABEE4

Accessibility & contrast

On white

4.06

#3981CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#3981CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3981CA

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3981CA	#FFFFFF	#000000	##000000
##3981CA	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)

#6085CD

Deuteranopia (green-blind)

#4A78C9

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3981ca;
/* rgb */ color: rgb(57, 129, 202);
/* oklch */ color: oklch(59.3% 0.133 251.4);

Tailwind

colors: {
  custom: {
    50: '#81a5da',
    500: '#3981ca',
    950: '#000000',
  },
}

SCSS

$custom: #3981ca;
$custom-light: #81a5da;
$custom-dark: #000000;

JSON

{
  "hex": "#3981ca",
  "rgb": {
    "r": 57,
    "g": 129,
    "b": 202
  },
  "hsl": {
    "h": 210.207,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.59254,
    "c": 0.13305,
    "h": 251.4
  },
  "luminance": 0.20835
}

Semantic roles & 50–950 ramp

primary

#3981CA

secondary

#D0B08F

accent

#9447E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3981CA

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

Preview Lab → · Contrast checker → · Palette generator →