#21298B#21298B

#21298B is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.9% C 0.159 H 271.3°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#21298B
RGB	rgb(33, 41, 139)
HSL	hsl(235, 62%, 34%)
HSV	hsv(235, 76%, 55%)
CMYK	cmyk(76.3%, 70.5%, 0%, 45.5%)
CIE-LAB	lab(22.91, 32.26, -55.11)
CIE-LCH	lch(22.91, 63.86, 300.34°)
OKLab	oklab(34.86% 0.0036 -0.1594)
OKLCH	oklch(34.86% 0.159 271.3)
XYZ	xyz(6.0788, 3.7726, 24.8289)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21298B #8B8321

analogous

#215E8B #21298B #4E218B

triadic

#21298B #8B2129 #298B21

tetradic

#21298B #8B215E #8B8321 #218B4E

square

#21298B #8B215E #8B8321 #218B4E

split-complementary

#21298B #8B4E21 #5E8B21

monochromatic

#0A0C28 #151A5A #21298B #2D38BC #515BD6

Accessibility & contrast

On white

11.97

#21298B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#21298B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21298B

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21298B	#FFFFFF	#000000	##FFFFFF
##21298B	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003289

Tritanopia (blue-blind)

#004456

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #21298b;
/* rgb */ color: rgb(33, 41, 139);
/* oklch */ color: oklch(34.9% 0.159 271.3);

Tailwind

colors: {
  custom: {
    50: '#6e63ae',
    500: '#21298b',
    950: '#000000',
  },
}

SCSS

$custom: #21298b;
$custom-light: #6e63ae;
$custom-dark: #000000;

JSON

{
  "hex": "#21298b",
  "rgb": {
    "r": 33,
    "g": 41,
    "b": 139
  },
  "hsl": {
    "h": 235.472,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34862,
    "c": 0.15949,
    "h": 271.3
  },
  "luminance": 0.03773
}

Semantic roles & 50–950 ramp

primary

#21298B

secondary

#B9B14F

accent

#D943E5

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #21298B

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

Preview Lab → · Contrast checker → · Palette generator →