#3977C4#3977C4

#3977C4 is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.6% C 0.136 H 255.2°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3977C4
RGB	rgb(57, 119, 196)
HSL	hsl(213, 55%, 50%)
HSV	hsv(213, 71%, 77%)
CMYK	cmyk(70.9%, 39.3%, 0%, 23.1%)
CIE-LAB	lab(49.55, 5.87, -46.00)
CIE-LCH	lch(49.55, 46.38, 277.27°)
OKLab	oklab(56.64% -0.0346 -0.1311)
OKLCH	oklch(56.64% 0.136 255.2)
XYZ	xyz(18.2443, 18.0471, 54.7358)
Luminance	0.1805 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977C4 #C48639

analogous

#39BDC4 #3977C4 #4039C4

triadic

#3977C4 #C43977 #77C439

tetradic

#3977C4 #C439BD #C48639 #39C440

square

#3977C4 #C439BD #C48639 #39C440

split-complementary

#3977C4 #C44039 #BDC439

monochromatic

#1D3D65 #2B5A95 #3977C4 #6797D3 #97B8E1

Accessibility & contrast

On white

4.56

#3977C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#3977C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3977C4

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977C4	#FFFFFF	#000000	##000000
##3977C4	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#537DC7

Deuteranopia (green-blind)

#3E70C2

Tritanopia (blue-blind)

#008994

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3977c4;
/* rgb */ color: rgb(57, 119, 196);
/* oklch */ color: oklch(56.6% 0.136 255.2);

Tailwind

colors: {
  custom: {
    50: '#809dd6',
    500: '#3977c4',
    950: '#000000',
  },
}

SCSS

$custom: #3977c4;
$custom-light: #809dd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3977c4",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 196
  },
  "hsl": {
    "h": 213.237,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.5664,
    "c": 0.13561,
    "h": 255.2
  },
  "luminance": 0.18049
}

Semantic roles & 50–950 ramp

primary

#3977C4

secondary

#CCB08D

accent

#9C4ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3977C4

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

Preview Lab → · Contrast checker → · Palette generator →