#4371DB#4371DB

#4371DB is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.3% C 0.170 H 264.1°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#4371DB
RGB	rgb(67, 113, 219)
HSL	hsl(222, 68%, 56%)
HSV	hsv(222, 69%, 86%)
CMYK	cmyk(69.4%, 48.4%, 0%, 14.1%)
CIE-LAB	lab(49.64, 19.36, -58.95)
CIE-LCH	lch(49.64, 62.05, 288.18°)
OKLab	oklab(57.25% -0.0174 -0.1691)
OKLCH	oklch(57.25% 0.17 264.1)
XYZ	xyz(21.0015, 18.1159, 69.3940)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4371DB #DBAD43

analogous

#43BDDB #4371DB #6143DB

triadic

#4371DB #DB4371 #71DB43

tetradic

#4371DB #DB43BD #DBAD43 #43DB61

square

#4371DB #DB43BD #DBAD43 #43DB61

split-complementary

#4371DB #DB6143 #BDDB43

monochromatic

#1A3C89 #2452BD #4371DB #7698E5 #AABFEF

Accessibility & contrast

On white

4.54

#4371DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#4371DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4371DB

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4371DB	#FFFFFF	#000000	##000000
##4371DB	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#367DDF

Deuteranopia (green-blind)

#046FD9

Tritanopia (blue-blind)

#008A9B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4371db;
/* rgb */ color: rgb(67, 113, 219);
/* oklch */ color: oklch(57.3% 0.170 264.1);

Tailwind

colors: {
  custom: {
    50: '#8899e7',
    500: '#4371db',
    950: '#000000',
  },
}

SCSS

$custom: #4371db;
$custom-light: #8899e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4371db",
  "rgb": {
    "r": 67,
    "g": 113,
    "b": 219
  },
  "hsl": {
    "h": 221.842,
    "s": 67.857,
    "l": 56.078
  },
  "oklch": {
    "l": 0.57253,
    "c": 0.17001,
    "h": 264.1
  },
  "luminance": 0.18118
}

Semantic roles & 50–950 ramp

primary

#4371DB

secondary

#DCC99E

accent

#B63DEB

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4371DB

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

Preview Lab → · Contrast checker → · Palette generator →