#3975B5#3975B5

#3975B5 is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 55.3% C 0.118 H 252.0°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#3975B5
RGB	rgb(57, 117, 181)
HSL	hsl(211, 52%, 47%)
HSV	hsv(211, 69%, 71%)
CMYK	cmyk(68.5%, 35.4%, 0%, 29%)
CIE-LAB	lab(48.17, 1.69, -39.56)
CIE-LCH	lch(48.17, 39.59, 272.45°)
OKLab	oklab(55.3% -0.0364 -0.1123)
OKLCH	oklch(55.3% 0.118 252)
XYZ	xyz(16.3860, 16.9269, 46.1108)
Luminance	0.1693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3975B5 #B57939

analogous

#39B3B5 #3975B5 #3B39B5

triadic

#3975B5 #B53975 #75B539

tetradic

#3975B5 #B539B3 #B57939 #39B53B

square

#3975B5 #B539B3 #B57939 #39B53B

split-complementary

#3975B5 #B53B39 #B3B539

monochromatic

#1C3958 #2A5786 #3975B5 #5F94CD #8DB3DB

Accessibility & contrast

On white

4.79

#3975B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#3975B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3975B5

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3975B5	#FFFFFF	#000000	##FFFFFF
##3975B5	1.00	4.79	4.39	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5979B8

Deuteranopia (green-blind)

#476DB4

Tritanopia (blue-blind)

#00848C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3975b5;
/* rgb */ color: rgb(57, 117, 181);
/* oklch */ color: oklch(55.3% 0.118 252.0);

Tailwind

colors: {
  custom: {
    50: '#7d9ccb',
    500: '#3975b5',
    950: '#000000',
  },
}

SCSS

$custom: #3975b5;
$custom-light: #7d9ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#3975b5",
  "rgb": {
    "r": 57,
    "g": 117,
    "b": 181
  },
  "hsl": {
    "h": 210.968,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.55297,
    "c": 0.11804,
    "h": 252
  },
  "luminance": 0.16929
}

Semantic roles & 50–950 ramp

primary

#3975B5

secondary

#C6A684

accent

#964CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3975B5

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

Preview Lab → · Contrast checker → · Palette generator →