#4337CB#4337CB

#4337CB is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.6% C 0.217 H 277.1°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#4337CB
RGB	rgb(67, 55, 203)
HSL	hsl(245, 59%, 51%)
HSV	hsv(245, 73%, 80%)
CMYK	cmyk(67%, 72.9%, 0%, 20.4%)
CIE-LAB	lab(34.47, 49.36, -74.47)
CIE-LCH	lch(34.47, 89.34, 303.54°)
OKLab	oklab(45.64% 0.0266 -0.2151)
OKLCH	oklch(45.64% 0.217 277.1)
XYZ	xyz(14.4569, 8.2362, 57.3162)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4337CB #BFCB37

analogous

#3775CB #4337CB #8D37CB

triadic

#4337CB #CB4337 #37CB43

tetradic

#4337CB #CB3775 #BFCB37 #37CB8D

square

#4337CB #CB3775 #BFCB37 #37CB8D

split-complementary

#4337CB #CB8D37 #75CB37

monochromatic

#221C6C #32299C #4337CB #7168D8 #9E98E4

Accessibility & contrast

On white

7.93

#4337CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#4337CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337CB

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337CB	#FFFFFF	#000000	##FFFFFF
##4337CB	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057CF

Deuteranopia (green-blind)

#004BC8

Tritanopia (blue-blind)

#00617E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4337cb;
/* rgb */ color: rgb(67, 55, 203);
/* oklch */ color: oklch(45.6% 0.217 277.1);

Tailwind

colors: {
  custom: {
    50: '#8970dc',
    500: '#4337cb',
    950: '#000000',
  },
}

SCSS

$custom: #4337cb;
$custom-light: #8970dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4337cb",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 203
  },
  "hsl": {
    "h": 244.865,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.45636,
    "c": 0.21678,
    "h": 277.1
  },
  "luminance": 0.08237
}

Semantic roles & 50–950 ramp

primary

#4337CB

secondary

#CAD08E

accent

#E246D5

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4337CB

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

Preview Lab → · Contrast checker → · Palette generator →