#21318E#21318E

#21318E is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.154 H 269.4°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#21318E
RGB	rgb(33, 49, 142)
HSL	hsl(231, 62%, 34%)
HSV	hsv(231, 77%, 56%)
CMYK	cmyk(76.8%, 65.5%, 0%, 44.3%)
CIE-LAB	lab(25.17, 28.10, -53.25)
CIE-LCH	lch(25.17, 60.21, 297.82°)
OKLab	oklab(36.6% -0.0016 -0.154)
OKLCH	oklch(36.6% 0.154 269.4)
XYZ	xyz(6.6063, 4.4722, 26.1010)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21318E #8E7E21

analogous

#21688E #21318E #48218E

triadic

#21318E #8E2131 #318E21

tetradic

#21318E #8E2168 #8E7E21 #218E48

square

#21318E #8E2168 #8E7E21 #218E48

split-complementary

#21318E #8E4821 #688E21

monochromatic

#0A0F2B #15205C #21318E #2D42C0 #5266D7

Accessibility & contrast

On white

11.08

#21318E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#21318E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21318E

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21318E	#FFFFFF	#000000	##FFFFFF
##21318E	1.00	11.08	1.89	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004191

Deuteranopia (green-blind)

#00378C

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #21318e;
/* rgb */ color: rgb(33, 49, 142);
/* oklch */ color: oklch(36.6% 0.154 269.4);

Tailwind

colors: {
  custom: {
    50: '#6e69b0',
    500: '#21318e',
    950: '#000000',
  },
}

SCSS

$custom: #21318e;
$custom-light: #6e69b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21318e",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 142
  },
  "hsl": {
    "h": 231.193,
    "s": 62.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.36605,
    "c": 0.15398,
    "h": 269.4
  },
  "luminance": 0.04473
}

Semantic roles & 50–950 ramp

primary

#21318E

secondary

#BAAB50

accent

#CD42E5

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #21318E

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

Preview Lab → · Contrast checker → · Palette generator →