#21245B#21245B

#21245B is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.3% C 0.097 H 276.3°. Best body text is #FFFFFF at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#21245B
RGB	rgb(33, 36, 91)
HSL	hsl(237, 47%, 24%)
HSV	hsv(237, 64%, 36%)
CMYK	cmyk(63.7%, 60.4%, 0%, 64.3%)
CIE-LAB	lab(17.18, 17.52, -33.57)
CIE-LCH	lch(17.18, 37.87, 297.56°)
OKLab	oklab(29.3% 0.0106 -0.0963)
OKLCH	oklch(29.3% 0.097 276.3)
XYZ	xyz(3.1458, 2.3402, 10.1814)
Luminance	0.0234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21245B #5B5821

analogous

#21415B #21245B #3B215B

triadic

#21245B #5B2124 #245B21

tetradic

#21245B #5B2141 #5B5821 #215B3B

square

#21245B #5B2141 #5B5821 #215B3B

split-complementary

#21245B #5B3B21 #415B21

monochromatic

#080916 #11122E #21245B #313688 #4248B5

Accessibility & contrast

On white

14.31

#21245B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#21245B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21245B

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21245B	#FFFFFF	#000000	##FFFFFF
##21245B	1.00	14.31	1.47	14.31
#FFFFFF	14.31	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5D

Deuteranopia (green-blind)

#00285A

Tritanopia (blue-blind)

#00313B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #21245b;
/* rgb */ color: rgb(33, 36, 91);
/* oklch */ color: oklch(29.3% 0.097 276.3);

Tailwind

colors: {
  custom: {
    50: '#635e8a',
    500: '#21245b',
    950: '#000000',
  },
}

SCSS

$custom: #21245b;
$custom-light: #635e8a;
$custom-dark: #000000;

JSON

{
  "hex": "#21245b",
  "rgb": {
    "r": 33,
    "g": 36,
    "b": 91
  },
  "hsl": {
    "h": 236.897,
    "s": 46.774,
    "l": 24.314
  },
  "oklch": {
    "l": 0.29298,
    "c": 0.09691,
    "h": 276.3
  },
  "luminance": 0.0234
}

Semantic roles & 50–950 ramp

primary

#21245B

secondary

#8F8C49

accent

#D051D6

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06040C

muted

#7A797D

Preview Lab

Preview with #21245B

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

Preview Lab → · Contrast checker → · Palette generator →