#3970AB#3970AB

#3970AB is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.6% C 0.110 H 252.0°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3970AB
RGB	rgb(57, 112, 171)
HSL	hsl(211, 50%, 45%)
HSV	hsv(211, 67%, 67%)
CMYK	cmyk(66.7%, 34.5%, 0%, 32.9%)
CIE-LAB	lab(46.17, 1.19, -36.89)
CIE-LCH	lch(46.17, 36.91, 271.84°)
OKLab	oklab(53.57% -0.034 -0.1045)
OKLCH	oklch(53.57% 0.11 252)
XYZ	xyz(14.8295, 15.3970, 40.7106)
Luminance	0.1540 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3970AB #AB7439

analogous

#39A9AB #3970AB #3B39AB

triadic

#3970AB #AB3970 #70AB39

tetradic

#3970AB #AB39A9 #AB7439 #39AB3B

square

#3970AB #AB39A9 #AB7439 #39AB3B

split-complementary

#3970AB #AB3B39 #A9AB39

monochromatic

#1A344F #2A527D #3970AB #598FC8 #87AED7

Accessibility & contrast

On white

5.15

#3970AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#3970AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3970AB

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3970AB	#FFFFFF	#000000	##FFFFFF
##3970AB	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5673AD

Deuteranopia (green-blind)

#4668AA

Tritanopia (blue-blind)

#007E85

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3970ab;
/* rgb */ color: rgb(57, 112, 171);
/* oklch */ color: oklch(53.6% 0.110 252.0);

Tailwind

colors: {
  custom: {
    50: '#7b98c4',
    500: '#3970ab',
    950: '#000000',
  },
}

SCSS

$custom: #3970ab;
$custom-light: #7b98c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3970ab",
  "rgb": {
    "r": 57,
    "g": 112,
    "b": 171
  },
  "hsl": {
    "h": 211.053,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.53566,
    "c": 0.10993,
    "h": 252
  },
  "luminance": 0.15398
}

Semantic roles & 50–950 ramp

primary

#3970AB

secondary

#C1A17F

accent

#964EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #3970AB

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

Preview Lab → · Contrast checker → · Palette generator →