#21247B#21247B

#21247B is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.3% C 0.144 H 273.5°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#21247B
RGB	rgb(33, 36, 123)
HSL	hsl(238, 58%, 31%)
HSV	hsv(238, 73%, 48%)
CMYK	cmyk(73.2%, 70.7%, 0%, 51.8%)
CIE-LAB	lab(20.10, 29.61, -49.64)
CIE-LCH	lch(20.10, 57.80, 300.82°)
OKLab	oklab(32.35% 0.0087 -0.1435)
OKLCH	oklch(32.35% 0.144 273.5)
XYZ	xyz(4.8320, 3.0147, 19.0623)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21247B #7B7821

analogous

#21517B #21247B #4B217B

triadic

#21247B #7B2124 #247B21

tetradic

#21247B #7B2151 #7B7821 #217B4B

square

#21247B #7B2151 #7B7821 #217B4B

split-complementary

#21247B #7B4B21 #517B21

monochromatic

#07081A #14164B #21247B #2E32AB #484DCE

Accessibility & contrast

On white

13.10

#21247B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#21247B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21247B

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21247B	#FFFFFF	#000000	##FFFFFF
##21247B	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357E

Deuteranopia (green-blind)

#002C79

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #21247b;
/* rgb */ color: rgb(33, 36, 123);
/* oklch */ color: oklch(32.3% 0.144 273.5);

Tailwind

colors: {
  custom: {
    50: '#6b5fa2',
    500: '#21247b',
    950: '#000000',
  },
}

SCSS

$custom: #21247b;
$custom-light: #6b5fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#21247b",
  "rgb": {
    "r": 33,
    "g": 36,
    "b": 123
  },
  "hsl": {
    "h": 238,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.32348,
    "c": 0.14373,
    "h": 273.5
  },
  "luminance": 0.03015
}

Semantic roles & 50–950 ramp

primary

#21247B

secondary

#AEAB4A

accent

#DC47E1

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #21247B

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

Preview Lab → · Contrast checker → · Palette generator →