#4371BD#4371BD

#4371BD is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.3% C 0.129 H 259.9°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4371BD
RGB	rgb(67, 113, 189)
HSL	hsl(217, 48%, 50%)
HSV	hsv(217, 65%, 74%)
CMYK	cmyk(64.6%, 40.2%, 0%, 25.9%)
CIE-LAB	lab(47.85, 8.70, -44.66)
CIE-LCH	lch(47.85, 45.50, 281.03°)
OKLab	oklab(55.3% -0.0226 -0.1271)
OKLCH	oklch(55.3% 0.129 259.9)
XYZ	xyz(17.4019, 16.6760, 50.4360)
Luminance	0.1668 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4371BD #BD8F43

analogous

#43AEBD #4371BD #5243BD

triadic

#4371BD #BD4371 #71BD43

tetradic

#4371BD #BD43AE #BD8F43 #43BD52

square

#4371BD #BD43AE #BD8F43 #43BD52

split-complementary

#4371BD #BD5243 #AEBD43

monochromatic

#233B63 #335690 #4371BD #7093CD #9EB5DD

Accessibility & contrast

On white

4.84

#4371BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#4371BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4371BD

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4371BD	#FFFFFF	#000000	##FFFFFF
##4371BD	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F78C0

Deuteranopia (green-blind)

#3D6CBB

Tritanopia (blue-blind)

#00828E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4371bd;
/* rgb */ color: rgb(67, 113, 189);
/* oklch */ color: oklch(55.3% 0.129 259.9);

Tailwind

colors: {
  custom: {
    50: '#8399d1',
    500: '#4371bd',
    950: '#000000',
  },
}

SCSS

$custom: #4371bd;
$custom-light: #8399d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4371bd",
  "rgb": {
    "r": 67,
    "g": 113,
    "b": 189
  },
  "hsl": {
    "h": 217.377,
    "s": 48.031,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55302,
    "c": 0.12913,
    "h": 259.9
  },
  "luminance": 0.16678
}

Semantic roles & 50–950 ramp

primary

#4371BD

secondary

#C9B593

accent

#A550D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4371BD

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

Preview Lab → · Contrast checker → · Palette generator →