#3977BA#3977BA

#3977BA is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 56.0% C 0.123 H 252.4°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3977BA
RGB	rgb(57, 119, 186)
HSL	hsl(211, 53%, 48%)
HSV	hsv(211, 69%, 73%)
CMYK	cmyk(69.4%, 36%, 0%, 27.1%)
CIE-LAB	lab(49.02, 2.26, -41.11)
CIE-LCH	lch(49.02, 41.17, 273.15°)
OKLab	oklab(56.05% -0.037 -0.1168)
OKLCH	oklch(56.05% 0.123 252.4)
XYZ	xyz(17.1438, 17.6069, 48.9398)
Luminance	0.1761 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3977BA #BA7C39

analogous

#39B7BA #3977BA #3C39BA

triadic

#3977BA #BA3977 #77BA39

tetradic

#3977BA #BA39B7 #BA7C39 #39BA3C

square

#3977BA #BA39B7 #BA7C39 #39BA3C

split-complementary

#3977BA #BA3C39 #B7BA39

monochromatic

#1C3B5C #2B598B #3977BA #6196CF #90B5DD

Accessibility & contrast

On white

4.64

#3977BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#3977BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3977BA

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3977BA	#FFFFFF	#000000	##FFFFFF
##3977BA	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597BBD

Deuteranopia (green-blind)

#466FB9

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3977ba;
/* rgb */ color: rgb(57, 119, 186);
/* oklch */ color: oklch(56.0% 0.123 252.4);

Tailwind

colors: {
  custom: {
    50: '#7e9dcf',
    500: '#3977ba',
    950: '#000000',
  },
}

SCSS

$custom: #3977ba;
$custom-light: #7e9dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3977ba",
  "rgb": {
    "r": 57,
    "g": 119,
    "b": 186
  },
  "hsl": {
    "h": 211.163,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56045,
    "c": 0.12253,
    "h": 252.4
  },
  "luminance": 0.17609
}

Semantic roles & 50–950 ramp

primary

#3977BA

secondary

#C8A987

accent

#974BDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3977BA

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

Preview Lab → · Contrast checker → · Palette generator →