#3975B8#3975B8

#3975B8 is a mid, vivid cyan. Relative luminance 0.171; OKLCH L 55.5% C 0.122 H 253.0°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3975B8
RGB	rgb(57, 117, 184)
HSL	hsl(212, 53%, 47%)
HSV	hsv(212, 69%, 72%)
CMYK	cmyk(69%, 36.4%, 0%, 27.8%)
CIE-LAB	lab(48.32, 2.77, -41.04)
CIE-LCH	lch(48.32, 41.14, 273.86°)
OKLab	oklab(55.47% -0.0356 -0.1166)
OKLCH	oklch(55.47% 0.122 253)
XYZ	xyz(16.6972, 17.0514, 47.7494)
Luminance	0.1705 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3975B8 #B87C39

analogous

#39B4B8 #3975B8 #3D39B8

triadic

#3975B8 #B83975 #75B839

tetradic

#3975B8 #B839B4 #B87C39 #39B83D

square

#3975B8 #B839B4 #B87C39 #39B83D

split-complementary

#3975B8 #B83D39 #B4B839

monochromatic

#1C3A5B #2B5789 #3975B8 #6094CE #8FB4DC

Accessibility & contrast

On white

4.76

#3975B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#3975B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3975B8

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3975B8	#FFFFFF	#000000	##FFFFFF
##3975B8	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5779BB

Deuteranopia (green-blind)

#456DB7

Tritanopia (blue-blind)

#00858E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3975b8;
/* rgb */ color: rgb(57, 117, 184);
/* oklch */ color: oklch(55.5% 0.122 253.0);

Tailwind

colors: {
  custom: {
    50: '#7e9ccd',
    500: '#3975b8',
    950: '#000000',
  },
}

SCSS

$custom: #3975b8;
$custom-light: #7e9ccd;
$custom-dark: #000000;

JSON

{
  "hex": "#3975b8",
  "rgb": {
    "r": 57,
    "g": 117,
    "b": 184
  },
  "hsl": {
    "h": 211.654,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.55471,
    "c": 0.12195,
    "h": 253
  },
  "luminance": 0.17053
}

Semantic roles & 50–950 ramp

primary

#3975B8

secondary

#C7A886

accent

#984CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3975B8

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

Preview Lab → · Contrast checker → · Palette generator →