#3976B5#3976B5

#3976B5 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.5% C 0.117 H 251.4°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3976B5
RGB	rgb(57, 118, 181)
HSL	hsl(210, 52%, 47%)
HSV	hsv(210, 69%, 71%)
CMYK	cmyk(68.5%, 34.8%, 0%, 29%)
CIE-LAB	lab(48.46, 1.09, -39.09)
CIE-LCH	lch(48.46, 39.11, 271.59°)
OKLab	oklab(55.53% -0.0374 -0.1109)
OKLCH	oklch(55.53% 0.117 251.4)
XYZ	xyz(16.5032, 17.1612, 46.1498)
Luminance	0.1716 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976B5 #B57839

analogous

#39B4B5 #3976B5 #3A39B5

triadic

#3976B5 #B53976 #76B539

tetradic

#3976B5 #B539B4 #B57839 #39B53A

square

#3976B5 #B539B4 #B57839 #39B53A

split-complementary

#3976B5 #B53A39 #B4B539

monochromatic

#1C3958 #2A5886 #3976B5 #5F95CD #8DB4DB

Accessibility & contrast

On white

4.74

#3976B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#3976B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3976B5

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976B5	#FFFFFF	#000000	##FFFFFF
##3976B5	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7AB8

Deuteranopia (green-blind)

#486EB4

Tritanopia (blue-blind)

#00858D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3976b5;
/* rgb */ color: rgb(57, 118, 181);
/* oklch */ color: oklch(55.5% 0.117 251.4);

Tailwind

colors: {
  custom: {
    50: '#7d9dcb',
    500: '#3976b5',
    950: '#000000',
  },
}

SCSS

$custom: #3976b5;
$custom-light: #7d9dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3976b5",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 181
  },
  "hsl": {
    "h": 210.484,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.55527,
    "c": 0.11704,
    "h": 251.4
  },
  "luminance": 0.17163
}

Semantic roles & 50–950 ramp

primary

#3976B5

secondary

#C6A584

accent

#954CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3976B5

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

Preview Lab → · Contrast checker → · Palette generator →