#3975BC#3975BC

#3975BC is a mid, vivid cyan. Relative luminance 0.172; OKLCH L 55.7% C 0.127 H 254.2°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3975BC
RGB	rgb(57, 117, 188)
HSL	hsl(213, 53%, 48%)
HSV	hsv(213, 70%, 74%)
CMYK	cmyk(69.7%, 37.8%, 0%, 26.3%)
CIE-LAB	lab(48.54, 4.21, -43.02)
CIE-LCH	lch(48.54, 43.22, 275.59°)
OKLab	oklab(55.71% -0.0346 -0.1224)
OKLCH	oklch(55.71% 0.127 254.2)
XYZ	xyz(17.1224, 17.2215, 49.9889)
Luminance	0.1722 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3975BC #BC8039

analogous

#39B6BC #3975BC #3E39BC

triadic

#3975BC #BC3975 #75BC39

tetradic

#3975BC #BC39B6 #BC8039 #39BC3E

square

#3975BC #BC39B6 #BC8039 #39BC3E

split-complementary

#3975BC #BC3E39 #B6BC39

monochromatic

#1D3B5E #2B588D #3975BC #6395D0 #92B4DE

Accessibility & contrast

On white

4.72

#3975BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3975BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3975BC

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3975BC	#FFFFFF	#000000	##FFFFFF
##3975BC	1.00	4.72	4.44	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#557ABF

Deuteranopia (green-blind)

#416EBB

Tritanopia (blue-blind)

#00868F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3975bc;
/* rgb */ color: rgb(57, 117, 188);
/* oklch */ color: oklch(55.7% 0.127 254.2);

Tailwind

colors: {
  custom: {
    50: '#7e9cd0',
    500: '#3975bc',
    950: '#000000',
  },
}

SCSS

$custom: #3975bc;
$custom-light: #7e9cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3975bc",
  "rgb": {
    "r": 57,
    "g": 117,
    "b": 188
  },
  "hsl": {
    "h": 212.519,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.55707,
    "c": 0.1272,
    "h": 254.2
  },
  "luminance": 0.17223
}

Semantic roles & 50–950 ramp

primary

#3975BC

secondary

#C9AB88

accent

#9A4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3975BC

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

Preview Lab → · Contrast checker → · Palette generator →