#21247E#21247E

#21247E is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.7% C 0.148 H 273.2°. Best body text is #FFFFFF at 12.98:1 contrast (WCAG AA passes).

Color values

HEX	#21247E
RGB	rgb(33, 36, 126)
HSL	hsl(238, 58%, 31%)
HSV	hsv(238, 74%, 49%)
CMYK	cmyk(73.8%, 71.4%, 0%, 50.6%)
CIE-LAB	lab(20.40, 30.72, -51.05)
CIE-LCH	lch(20.40, 59.58, 301.03°)
OKLab	oklab(32.66% 0.0083 -0.1476)
OKLCH	oklch(32.66% 0.148 273.2)
XYZ	xyz(5.0227, 3.0909, 20.0665)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21247E #7E7B21

analogous

#21527E #21247E #4C217E

triadic

#21247E #7E2124 #247E21

tetradic

#21247E #7E2152 #7E7B21 #217E4C

square

#21247E #7E2152 #7E7B21 #217E4C

split-complementary

#21247E #7E4C21 #527E21

monochromatic

#08081D #14164E #21247E #2E32AE #4A4ED0

Accessibility & contrast

On white

12.98

#21247E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#21247E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21247E

12.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21247E	#FFFFFF	#000000	##FFFFFF
##21247E	1.00	12.98	1.62	12.98
#FFFFFF	12.98	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003681

Deuteranopia (green-blind)

#002D7C

Tritanopia (blue-blind)

#003D4E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #21247e;
/* rgb */ color: rgb(33, 36, 126);
/* oklch */ color: oklch(32.7% 0.148 273.2);

Tailwind

colors: {
  custom: {
    50: '#6b5fa4',
    500: '#21247e',
    950: '#000000',
  },
}

SCSS

$custom: #21247e;
$custom-light: #6b5fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#21247e",
  "rgb": {
    "r": 33,
    "g": 36,
    "b": 126
  },
  "hsl": {
    "h": 238.065,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32658,
    "c": 0.14782,
    "h": 273.2
  },
  "luminance": 0.03091
}

Semantic roles & 50–950 ramp

primary

#21247E

secondary

#B1AD4A

accent

#DD46E2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #21247E

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

Preview Lab → · Contrast checker → · Palette generator →