#3975B0#3975B0

#3975B0 is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 55.0% C 0.112 H 250.2°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#3975B0
RGB	rgb(57, 117, 176)
HSL	hsl(210, 51%, 46%)
HSV	hsv(210, 68%, 69%)
CMYK	cmyk(67.6%, 33.5%, 0%, 31%)
CIE-LAB	lab(47.91, -0.09, -37.06)
CIE-LCH	lch(47.91, 37.06, 269.87°)
OKLab	oklab(55.01% -0.0378 -0.105)
OKLCH	oklch(55.01% 0.112 250.2)
XYZ	xyz(15.8822, 16.7254, 43.4572)
Luminance	0.1673 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3975B0 #B07439

analogous

#39B0AF #3975B0 #3939B0

triadic

#3975B0 #B03975 #75B039

tetradic

#3975B0 #AF39B0 #B07439 #39B039

square

#3975B0 #AF39B0 #B07439 #39B039

split-complementary

#3975B0 #B03939 #B0AF39

monochromatic

#1B3854 #2A5682 #3975B0 #5C94CA #8AB2D9

Accessibility & contrast

On white

4.83

#3975B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#3975B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3975B0

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3975B0	#FFFFFF	#000000	##FFFFFF
##3975B0	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B78B3

Deuteranopia (green-blind)

#4A6DAF

Tritanopia (blue-blind)

#00838A

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3975b0;
/* rgb */ color: rgb(57, 117, 176);
/* oklch */ color: oklch(55.0% 0.112 250.2);

Tailwind

colors: {
  custom: {
    50: '#7c9cc8',
    500: '#3975b0',
    950: '#000000',
  },
}

SCSS

$custom: #3975b0;
$custom-light: #7c9cc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3975b0",
  "rgb": {
    "r": 57,
    "g": 117,
    "b": 176
  },
  "hsl": {
    "h": 209.748,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.55013,
    "c": 0.11159,
    "h": 250.2
  },
  "luminance": 0.16727
}

Semantic roles & 50–950 ramp

primary

#3975B0

secondary

#C4A281

accent

#934DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3975B0

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

Preview Lab → · Contrast checker → · Palette generator →