#3021BB#3021BB

#3021BB is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 40.0% C 0.222 H 274.0°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#3021BB
RGB	rgb(48, 33, 187)
HSL	hsl(246, 70%, 43%)
HSV	hsv(246, 82%, 73%)
CMYK	cmyk(74.3%, 82.4%, 0%, 26.7%)
CIE-LAB	lab(27.58, 53.80, -76.51)
CIE-LCH	lch(27.58, 93.53, 305.12°)
OKLab	oklab(39.96% 0.0156 -0.2212)
OKLCH	oklch(39.96% 0.222 274)
XYZ	xyz(10.7294, 5.3028, 47.4622)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3021BB #ACBB21

analogous

#215FBB #3021BB #7D21BB

triadic

#3021BB #BB3021 #21BB30

tetradic

#3021BB #BB215F #ACBB21 #21BB7D

square

#3021BB #BB215F #ACBB21 #21BB7D

split-complementary

#3021BB #BB7D21 #5FBB21

monochromatic

#150F53 #231887 #3021BB #4C3DDD #7C71E6

Accessibility & contrast

On white

10.19

#3021BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#3021BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3021BB

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3021BB	#FFFFFF	#000000	##FFFFFF
##3021BB	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#003AB8

Tritanopia (blue-blind)

#005270

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3021bb;
/* rgb */ color: rgb(48, 33, 187);
/* oklch */ color: oklch(40.0% 0.222 274.0);

Tailwind

colors: {
  custom: {
    50: '#8062d1',
    500: '#3021bb',
    950: '#000000',
  },
}

SCSS

$custom: #3021bb;
$custom-light: #8062d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3021bb",
  "rgb": {
    "r": 48,
    "g": 33,
    "b": 187
  },
  "hsl": {
    "h": 245.844,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.39962,
    "c": 0.22179,
    "h": 274
  },
  "luminance": 0.05304
}

Semantic roles & 50–950 ramp

primary

#3021BB

secondary

#C3CC6B

accent

#ED3BDB

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #3021BB

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

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