#3971AC#3971AC

#3971AC is a mid, moderate cyan. Relative luminance 0.157; OKLCH L 53.9% C 0.110 H 251.6°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#3971AC
RGB	rgb(57, 113, 172)
HSL	hsl(211, 50%, 45%)
HSV	hsv(211, 67%, 67%)
CMYK	cmyk(66.9%, 34.3%, 0%, 32.5%)
CIE-LAB	lab(46.52, 0.93, -36.92)
CIE-LCH	lch(46.52, 36.93, 271.44°)
OKLab	oklab(53.86% -0.0348 -0.1046)
OKLCH	oklch(53.86% 0.11 251.6)
XYZ	xyz(15.0361, 15.6571, 41.2514)
Luminance	0.1566 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3971AC #AC7439

analogous

#39AAAC #3971AC #3B39AC

triadic

#3971AC #AC3971 #71AC39

tetradic

#3971AC #AC39AA #AC7439 #39AC3B

square

#3971AC #AC39AA #AC7439 #39AC3B

split-complementary

#3971AC #AC3B39 #AAAC39

monochromatic

#1B3550 #2A537E #3971AC #5A90C8 #88AFD8

Accessibility & contrast

On white

5.08

#3971AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#3971AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3971AC

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3971AC	#FFFFFF	#000000	##FFFFFF
##3971AC	1.00	5.08	4.13	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5774AE

Deuteranopia (green-blind)

#4769AB

Tritanopia (blue-blind)

#007F86

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3971ac;
/* rgb */ color: rgb(57, 113, 172);
/* oklch */ color: oklch(53.9% 0.110 251.6);

Tailwind

colors: {
  custom: {
    50: '#7c99c5',
    500: '#3971ac',
    950: '#000000',
  },
}

SCSS

$custom: #3971ac;
$custom-light: #7c99c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3971ac",
  "rgb": {
    "r": 57,
    "g": 113,
    "b": 172
  },
  "hsl": {
    "h": 210.783,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.53855,
    "c": 0.11026,
    "h": 251.6
  },
  "luminance": 0.15659
}

Semantic roles & 50–950 ramp

primary

#3971AC

secondary

#C2A17F

accent

#964EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3971AC

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

Preview Lab → · Contrast checker → · Palette generator →