#3875CB#3875CB

#3875CB is a mid, vivid blue. Relative luminance 0.179; OKLCH L 56.6% C 0.147 H 257.5°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3875CB
RGB	rgb(56, 117, 203)
HSL	hsl(215, 59%, 51%)
HSV	hsv(215, 72%, 80%)
CMYK	cmyk(72.4%, 42.4%, 0%, 20.4%)
CIE-LAB	lab(49.34, 9.51, -50.35)
CIE-LCH	lch(49.34, 51.24, 280.70°)
OKLab	oklab(56.6% -0.0319 -0.1439)
OKLCH	oklch(56.6% 0.147 257.5)
XYZ	xyz(18.7677, 17.8731, 58.9491)
Luminance	0.1787 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3875CB #CB8E38

analogous

#38BECB #3875CB #4438CB

triadic

#3875CB #CB3875 #75CB38

tetradic

#3875CB #CB38BE #CB8E38 #38CB44

square

#3875CB #CB38BE #CB8E38 #38CB44

split-complementary

#3875CB #CB4438 #BECB38

monochromatic

#1C3D6C #29599D #3875CB #6997D8 #99B8E4

Accessibility & contrast

On white

4.59

#3875CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3875CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3875CB

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3875CB	#FFFFFF	#000000	##FFFFFF
##3875CB	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7DCE

Deuteranopia (green-blind)

#326FC9

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3875cb;
/* rgb */ color: rgb(56, 117, 203);
/* oklch */ color: oklch(56.6% 0.147 257.5);

Tailwind

colors: {
  custom: {
    50: '#819cdb',
    500: '#3875cb',
    950: '#000000',
  },
}

SCSS

$custom: #3875cb;
$custom-light: #819cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3875cb",
  "rgb": {
    "r": 56,
    "g": 117,
    "b": 203
  },
  "hsl": {
    "h": 215.102,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56595,
    "c": 0.14742,
    "h": 257.5
  },
  "luminance": 0.17875
}

Semantic roles & 50–950 ramp

primary

#3875CB

secondary

#D0B58F

accent

#A146E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3875CB

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

Preview Lab → · Contrast checker → · Palette generator →