#21156E#21156E

#21156E is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.143 H 278.4°. Best body text is #FFFFFF at 15.03:1 contrast (WCAG AA passes).

Color values

HEX	#21156E
RGB	rgb(33, 21, 110)
HSL	hsl(248, 68%, 26%)
HSV	hsv(248, 81%, 43%)
CMYK	cmyk(70%, 80.9%, 0%, 56.9%)
CIE-LAB	lab(15.41, 34.21, -48.99)
CIE-LCH	lch(15.41, 59.76, 304.92°)
OKLab	oklab(28.59% 0.0209 -0.1415)
OKLCH	oklch(28.59% 0.143 278.4)
XYZ	xyz(3.7089, 1.9851, 14.9365)
Luminance	0.0198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21156E #626E15

analogous

#15356E #21156E #4D156E

triadic

#21156E #6E2115 #156E21

tetradic

#21156E #6E1535 #626E15 #156E4D

square

#21156E #6E1535 #626E15 #156E4D

split-complementary

#21156E #6E4D15 #356E15

monochromatic

#08051A #120B3B #21156E #301FA1 #4029D5

Accessibility & contrast

On white

15.03

#21156E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#21156E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21156E

15.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21156E	#FFFFFF	#000000	##FFFFFF
##21156E	1.00	15.03	1.40	15.03
#FFFFFF	15.03	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A71

Deuteranopia (green-blind)

#00236C

Tritanopia (blue-blind)

#002F41

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #21156e;
/* rgb */ color: rgb(33, 21, 110);
/* oklch */ color: oklch(28.6% 0.143 278.4);

Tailwind

colors: {
  custom: {
    50: '#695599',
    500: '#21156e',
    950: '#000000',
  },
}

SCSS

$custom: #21156e;
$custom-light: #695599;
$custom-dark: #000000;

JSON

{
  "hex": "#21156e",
  "rgb": {
    "r": 33,
    "g": 21,
    "b": 110
  },
  "hsl": {
    "h": 248.09,
    "s": 67.939,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28585,
    "c": 0.14305,
    "h": 278.4
  },
  "luminance": 0.01985
}

Semantic roles & 50–950 ramp

primary

#21156E

secondary

#96A43A

accent

#EB3DD3

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #21156E

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

Preview Lab → · Contrast checker → · Palette generator →