#3873B2#3873B2

#3873B2 is a mid, moderate cyan. Relative luminance 0.163; OKLCH L 54.6% C 0.117 H 252.1°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#3873B2
RGB	rgb(56, 115, 178)
HSL	hsl(211, 52%, 46%)
HSV	hsv(211, 69%, 70%)
CMYK	cmyk(68.5%, 35.4%, 0%, 30.2%)
CIE-LAB	lab(47.38, 1.68, -39.06)
CIE-LCH	lch(47.38, 39.09, 272.46°)
OKLab	oklab(54.62% -0.0359 -0.1109)
OKLCH	oklch(54.62% 0.117 252.1)
XYZ	xyz(15.7945, 16.3149, 44.4276)
Luminance	0.1632 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3873B2 #B27738

analogous

#38B0B2 #3873B2 #3A38B2

triadic

#3873B2 #B23873 #73B238

tetradic

#3873B2 #B238B0 #B27738 #38B23A

square

#3873B2 #B238B0 #B27738 #38B23A

split-complementary

#3873B2 #B23A38 #B0B238

monochromatic

#1B3755 #295583 #3873B2 #5C92CC #8AB1DA

Accessibility & contrast

On white

4.93

#3873B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#3873B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3873B2

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3873B2	#FFFFFF	#000000	##FFFFFF
##3873B2	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5777B5

Deuteranopia (green-blind)

#466BB1

Tritanopia (blue-blind)

#00828A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3873b2;
/* rgb */ color: rgb(56, 115, 178);
/* oklch */ color: oklch(54.6% 0.117 252.1);

Tailwind

colors: {
  custom: {
    50: '#7c9ac9',
    500: '#3873b2',
    950: '#000000',
  },
}

SCSS

$custom: #3873b2;
$custom-light: #7c9ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#3873b2",
  "rgb": {
    "r": 56,
    "g": 115,
    "b": 178
  },
  "hsl": {
    "h": 210.984,
    "s": 52.137,
    "l": 45.882
  },
  "oklch": {
    "l": 0.54622,
    "c": 0.11652,
    "h": 252.1
  },
  "luminance": 0.16317
}

Semantic roles & 50–950 ramp

primary

#3873B2

secondary

#C5A481

accent

#964CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3873B2

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

Preview Lab → · Contrast checker → · Palette generator →