#4027BE#4027BE

#4027BE is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 42.1% C 0.217 H 279.1°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#4027BE
RGB	rgb(64, 39, 190)
HSL	hsl(250, 66%, 45%)
HSV	hsv(250, 79%, 75%)
CMYK	cmyk(66.3%, 79.5%, 0%, 25.5%)
CIE-LAB	lab(30.05, 53.24, -74.15)
CIE-LCH	lch(30.05, 91.28, 305.68°)
OKLab	oklab(42.08% 0.0344 -0.2141)
OKLCH	oklch(42.08% 0.217 279.1)
XYZ	xyz(12.1312, 6.2577, 49.2738)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4027BE #A5BE27

analogous

#2759BE #4027BE #8C27BE

triadic

#4027BE #BE4027 #27BE40

tetradic

#4027BE #BE2759 #A5BE27 #27BE8C

square

#4027BE #BE2759 #A5BE27 #27BE8C

split-complementary

#4027BE #BE8C27 #59BE27

monochromatic

#1E1258 #2F1D8B #4027BE #6149DA #8D7BE4

Accessibility & contrast

On white

9.33

#4027BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#4027BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4027BE

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4027BE	#FFFFFF	#000000	##FFFFFF
##4027BE	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CC2

Deuteranopia (green-blind)

#0041BB

Tritanopia (blue-blind)

#005573

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #4027be;
/* rgb */ color: rgb(64, 39, 190);
/* oklch */ color: oklch(42.1% 0.217 279.1);

Tailwind

colors: {
  custom: {
    50: '#8666d3',
    500: '#4027be',
    950: '#000000',
  },
}

SCSS

$custom: #4027be;
$custom-light: #8666d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4027be",
  "rgb": {
    "r": 64,
    "g": 39,
    "b": 190
  },
  "hsl": {
    "h": 249.934,
    "s": 65.939,
    "l": 44.902
  },
  "oklch": {
    "l": 0.4208,
    "c": 0.21686,
    "h": 279.1
  },
  "luminance": 0.06259
}

Semantic roles & 50–950 ramp

primary

#4027BE

secondary

#BECC75

accent

#E93FCD

background

#F9F6FD

surface

#F1EBFA

border

#CBC6D3

text

#0D0614

muted

#7E7A83

Preview Lab

Preview with #4027BE

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

Preview Lab → · Contrast checker → · Palette generator →