#21297E#21297E

#21297E is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.6% C 0.142 H 272.0°. Best body text is #FFFFFF at 12.48:1 contrast (WCAG AA passes).

Color values

HEX	#21297E
RGB	rgb(33, 41, 126)
HSL	hsl(235, 58%, 31%)
HSV	hsv(235, 74%, 49%)
CMYK	cmyk(73.8%, 67.5%, 0%, 50.6%)
CIE-LAB	lab(21.64, 27.41, -49.03)
CIE-LCH	lch(21.64, 56.17, 299.21°)
OKLab	oklab(33.55% 0.0049 -0.1417)
OKLCH	oklch(33.55% 0.142 272)
XYZ	xyz(5.1848, 3.4151, 20.1205)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21297E #7E7621

analogous

#21577E #21297E #47217E

triadic

#21297E #7E2129 #297E21

tetradic

#21297E #7E2157 #7E7621 #217E47

square

#21297E #7E2157 #7E7621 #217E47

split-complementary

#21297E #7E4721 #577E21

monochromatic

#08091D #14194E #21297E #2E39AE #4A55D0

Accessibility & contrast

On white

12.48

#21297E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#21297E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21297E

12.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21297E	#FFFFFF	#000000	##FFFFFF
##21297E	1.00	12.48	1.68	12.48
#FFFFFF	12.48	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003881

Deuteranopia (green-blind)

#00307C

Tritanopia (blue-blind)

#003F4F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #21297e;
/* rgb */ color: rgb(33, 41, 126);
/* oklch */ color: oklch(33.6% 0.142 272.0);

Tailwind

colors: {
  custom: {
    50: '#6b63a4',
    500: '#21297e',
    950: '#000000',
  },
}

SCSS

$custom: #21297e;
$custom-light: #6b63a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21297e",
  "rgb": {
    "r": 33,
    "g": 41,
    "b": 126
  },
  "hsl": {
    "h": 234.839,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33551,
    "c": 0.14175,
    "h": 272
  },
  "luminance": 0.03416
}

Semantic roles & 50–950 ramp

primary

#21297E

secondary

#B1A84A

accent

#D446E2

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#08050F

muted

#7A797F

Preview Lab

Preview with #21297E

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

Preview Lab → · Contrast checker → · Palette generator →