#3974BC#3974BC

#3974BC is a mid, vivid cyan. Relative luminance 0.170; OKLCH L 55.5% C 0.128 H 254.8°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3974BC
RGB	rgb(57, 116, 188)
HSL	hsl(213, 53%, 48%)
HSV	hsv(213, 70%, 74%)
CMYK	cmyk(69.7%, 38.3%, 0%, 26.3%)
CIE-LAB	lab(48.25, 4.82, -43.48)
CIE-LCH	lch(48.25, 43.74, 276.33°)
OKLab	oklab(55.48% -0.0336 -0.1238)
OKLCH	oklch(55.48% 0.128 254.8)
XYZ	xyz(17.0065, 16.9897, 49.9503)
Luminance	0.1699 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974BC #BC8139

analogous

#39B5BC #3974BC #3F39BC

triadic

#3974BC #BC3974 #74BC39

tetradic

#3974BC #BC39B5 #BC8139 #39BC3F

square

#3974BC #BC39B5 #BC8139 #39BC3F

split-complementary

#3974BC #BC3F39 #B5BC39

monochromatic

#1D3A5E #2B578D #3974BC #6394D0 #92B4DE

Accessibility & contrast

On white

4.77

#3974BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3974BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3974BC

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974BC	#FFFFFF	#000000	##FFFFFF
##3974BC	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5379BF

Deuteranopia (green-blind)

#406DBB

Tritanopia (blue-blind)

#00858F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3974bc;
/* rgb */ color: rgb(57, 116, 188);
/* oklch */ color: oklch(55.5% 0.128 254.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3974bc",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 188
  },
  "hsl": {
    "h": 212.977,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.5548,
    "c": 0.12826,
    "h": 254.8
  },
  "luminance": 0.16991
}

Semantic roles & 50–950 ramp

primary

#3974BC

secondary

#C9AC88

accent

#9B4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3974BC

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

Preview Lab → · Contrast checker → · Palette generator →