#3981B9#3981B9

#3981B9 is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.3% C 0.112 H 245.0°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3981B9
RGB	rgb(57, 129, 185)
HSL	hsl(206, 53%, 47%)
HSV	hsv(206, 69%, 73%)
CMYK	cmyk(69.2%, 30.3%, 0%, 27.5%)
CIE-LAB	lab(51.92, -4.08, -35.96)
CIE-LCH	lch(51.92, 36.19, 263.53°)
OKLab	oklab(58.31% -0.0474 -0.1016)
OKLCH	oklch(58.31% 0.112 245)
XYZ	xyz(18.2912, 20.0712, 48.7997)
Luminance	0.2007 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3981B9 #B97139

analogous

#39B9B1 #3981B9 #3941B9

triadic

#3981B9 #B93981 #81B939

tetradic

#3981B9 #B139B9 #B97139 #41B939

square

#3981B9 #B139B9 #B97139 #41B939

split-complementary

#3981B9 #B93941 #B9B139

monochromatic

#1C405B #2B608A #3981B9 #619ECE #90BBDD

Accessibility & contrast

On white

4.19

#3981B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#3981B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3981B9

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3981B9	#FFFFFF	#000000	##000000
##3981B9	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6883BB

Deuteranopia (green-blind)

#5676B8

Tritanopia (blue-blind)

#008F95

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3981b9;
/* rgb */ color: rgb(57, 129, 185);
/* oklch */ color: oklch(58.3% 0.112 245.0);

Tailwind

colors: {
  custom: {
    50: '#7ea5ce',
    500: '#3981b9',
    950: '#000000',
  },
}

SCSS

$custom: #3981b9;
$custom-light: #7ea5ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3981b9",
  "rgb": {
    "r": 57,
    "g": 129,
    "b": 185
  },
  "hsl": {
    "h": 206.25,
    "s": 52.893,
    "l": 47.451
  },
  "oklch": {
    "l": 0.5831,
    "c": 0.11214,
    "h": 245
  },
  "luminance": 0.20073
}

Semantic roles & 50–950 ramp

primary

#3981B9

secondary

#C8A386

accent

#8B4BDC

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3981B9

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

Preview Lab → · Contrast checker → · Palette generator →