#3974BB#3974BB

#3974BB is a mid, vivid cyan. Relative luminance 0.169; OKLCH L 55.4% C 0.127 H 254.5°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3974BB
RGB	rgb(57, 116, 187)
HSL	hsl(213, 53%, 48%)
HSV	hsv(213, 70%, 73%)
CMYK	cmyk(69.5%, 38%, 0%, 26.7%)
CIE-LAB	lab(48.19, 4.46, -42.99)
CIE-LCH	lch(48.19, 43.22, 275.93°)
OKLab	oklab(55.42% -0.0338 -0.1223)
OKLCH	oklch(55.42% 0.127 254.5)
XYZ	xyz(16.8991, 16.9467, 49.3845)
Luminance	0.1695 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974BB #BB8039

analogous

#39B5BB #3974BB #3F39BB

triadic

#3974BB #BB3974 #74BB39

tetradic

#3974BB #BB39B5 #BB8039 #39BB3F

square

#3974BB #BB39B5 #BB8039 #39BB3F

split-complementary

#3974BB #BB3F39 #B5BB39

monochromatic

#1C3A5D #2B578C #3974BB #6294CF #91B4DD

Accessibility & contrast

On white

4.78

#3974BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#3974BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3974BB

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974BB	#FFFFFF	#000000	##FFFFFF
##3974BB	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5479BE

Deuteranopia (green-blind)

#406DBA

Tritanopia (blue-blind)

#00858E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3974bb;
/* rgb */ color: rgb(57, 116, 187);
/* oklch */ color: oklch(55.4% 0.127 254.5);

Tailwind

colors: {
  custom: {
    50: '#7e9bd0',
    500: '#3974bb',
    950: '#000000',
  },
}

SCSS

$custom: #3974bb;
$custom-light: #7e9bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3974bb",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 187
  },
  "hsl": {
    "h": 212.769,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.5542,
    "c": 0.12694,
    "h": 254.5
  },
  "luminance": 0.16948
}

Semantic roles & 50–950 ramp

primary

#3974BB

secondary

#C8AB87

accent

#9B4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3974BB

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

Preview Lab → · Contrast checker → · Palette generator →