#21317E#21317E

#21317E is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.1% C 0.131 H 269.4°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#21317E
RGB	rgb(33, 49, 126)
HSL	hsl(230, 58%, 31%)
HSV	hsv(230, 74%, 49%)
CMYK	cmyk(73.8%, 61.1%, 0%, 50.6%)
CIE-LAB	lab(23.76, 21.91, -45.56)
CIE-LCH	lch(23.76, 50.56, 295.69°)
OKLab	oklab(35.12% -0.0013 -0.1314)
OKLCH	oklch(35.12% 0.131 269.4)
XYZ	xyz(5.4901, 4.0258, 20.2223)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21317E #7E6E21

analogous

#215F7E #21317E #3F217E

triadic

#21317E #7E2131 #317E21

tetradic

#21317E #7E215F #7E6E21 #217E3F

square

#21317E #7E215F #7E6E21 #217E3F

split-complementary

#21317E #7E3F21 #5F7E21

monochromatic

#080B1D #141E4E #21317E #2E44AE #4A61D0

Accessibility & contrast

On white

11.63

#21317E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#21317E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21317E

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21317E	#FFFFFF	#000000	##FFFFFF
##21317E	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D81

Deuteranopia (green-blind)

#00347C

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #21317e;
/* rgb */ color: rgb(33, 49, 126);
/* oklch */ color: oklch(35.1% 0.131 269.4);

Tailwind

colors: {
  custom: {
    50: '#6a68a4',
    500: '#21317e',
    950: '#000000',
  },
}

SCSS

$custom: #21317e;
$custom-light: #6a68a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21317e",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 126
  },
  "hsl": {
    "h": 229.677,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.35116,
    "c": 0.13144,
    "h": 269.4
  },
  "luminance": 0.04026
}

Semantic roles & 50–950 ramp

primary

#21317E

secondary

#B19F4A

accent

#C746E2

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #21317E

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

Preview Lab → · Contrast checker → · Palette generator →