#3981BC#3981BC

#3981BC is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.5% C 0.116 H 246.3°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3981BC
RGB	rgb(57, 129, 188)
HSL	hsl(207, 53%, 48%)
HSV	hsv(207, 70%, 74%)
CMYK	cmyk(69.7%, 31.4%, 0%, 26.3%)
CIE-LAB	lab(52.06, -3.02, -37.45)
CIE-LCH	lch(52.06, 37.57, 265.38°)
OKLab	oklab(58.47% -0.0464 -0.106)
OKLCH	oklch(58.47% 0.116 246.3)
XYZ	xyz(18.6113, 20.1992, 50.4852)
Luminance	0.2020 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3981BC #BC7439

analogous

#39BCB5 #3981BC #393FBC

triadic

#3981BC #BC3981 #81BC39

tetradic

#3981BC #B539BC #BC7439 #3FBC39

square

#3981BC #B539BC #BC7439 #3FBC39

split-complementary

#3981BC #BC393F #BCB539

monochromatic

#1D415E #2B618D #3981BC #639FD0 #92BBDE

Accessibility & contrast

On white

4.17

#3981BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3981BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3981BC

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3981BC	#FFFFFF	#000000	##000000
##3981BC	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6783BF

Deuteranopia (green-blind)

#5477BB

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3981bc;
/* rgb */ color: rgb(57, 129, 188);
/* oklch */ color: oklch(58.5% 0.116 246.3);

Tailwind

colors: {
  custom: {
    50: '#7fa5d0',
    500: '#3981bc',
    950: '#000000',
  },
}

SCSS

$custom: #3981bc;
$custom-light: #7fa5d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3981bc",
  "rgb": {
    "r": 57,
    "g": 129,
    "b": 188
  },
  "hsl": {
    "h": 207.023,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.5847,
    "c": 0.11572,
    "h": 246.3
  },
  "luminance": 0.20201
}

Semantic roles & 50–950 ramp

primary

#3981BC

secondary

#C9A588

accent

#8D4BDD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3981BC

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

Preview Lab → · Contrast checker → · Palette generator →