#21317C#21317C

#21317C is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.9% C 0.129 H 269.4°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#21317C
RGB	rgb(33, 49, 124)
HSL	hsl(229, 58%, 31%)
HSV	hsv(229, 73%, 49%)
CMYK	cmyk(73.4%, 60.5%, 0%, 51.4%)
CIE-LAB	lab(23.59, 21.13, -44.57)
CIE-LCH	lch(23.59, 49.33, 295.36°)
OKLab	oklab(34.94% -0.0013 -0.1285)
OKLCH	oklch(34.94% 0.129 269.4)
XYZ	xyz(5.3624, 3.9747, 19.5495)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21317C #7C6C21

analogous

#215E7C #21317C #3E217C

triadic

#21317C #7C2131 #317C21

tetradic

#21317C #7C215E #7C6C21 #217C3E

square

#21317C #7C215E #7C6C21 #217C3E

split-complementary

#21317C #7C3E21 #5E7C21

monochromatic

#070B1B #141E4C #21317C #2E44AC #4960CF

Accessibility & contrast

On white

11.70

#21317C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#21317C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21317C

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21317C	#FFFFFF	#000000	##FFFFFF
##21317C	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7F

Deuteranopia (green-blind)

#00347B

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #21317c;
/* rgb */ color: rgb(33, 49, 124);
/* oklch */ color: oklch(34.9% 0.129 269.4);

Tailwind

colors: {
  custom: {
    50: '#6a68a3',
    500: '#21317c',
    950: '#000000',
  },
}

SCSS

$custom: #21317c;
$custom-light: #6a68a3;
$custom-dark: #000000;

JSON

{
  "hex": "#21317c",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 124
  },
  "hsl": {
    "h": 229.451,
    "s": 57.962,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34938,
    "c": 0.12853,
    "h": 269.4
  },
  "luminance": 0.03975
}

Semantic roles & 50–950 ramp

primary

#21317C

secondary

#AF9D4A

accent

#C647E1

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #21317C

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

Preview Lab → · Contrast checker → · Palette generator →