#21177E#21177E

#21177E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.7% C 0.161 H 275.5°. Best body text is #FFFFFF at 14.11:1 contrast (WCAG AA passes).

Color values

HEX	#21177E
RGB	rgb(33, 23, 126)
HSL	hsl(246, 69%, 29%)
HSV	hsv(246, 82%, 49%)
CMYK	cmyk(73.8%, 81.7%, 0%, 50.6%)
CIE-LAB	lab(17.65, 38.44, -55.59)
CIE-LCH	lch(17.65, 67.58, 304.66°)
OKLab	oklab(30.71% 0.0154 -0.1607)
OKLCH	oklch(30.71% 0.161 275.5)
XYZ	xyz(4.6983, 2.4420, 19.9584)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21177E #747E17

analogous

#17417E #21177E #55177E

triadic

#21177E #7E2117 #177E21

tetradic

#21177E #7E1741 #747E17 #177E55

square

#21177E #7E1741 #747E17 #177E55

split-complementary

#21177E #7E5517 #417E17

monochromatic

#07051A #130E4A #21177E #2F20B2 #4535DA

Accessibility & contrast

On white

14.11

#21177E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#21177E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21177E

14.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21177E	#FFFFFF	#000000	##FFFFFF
##21177E	1.00	14.11	1.49	14.11
#FFFFFF	14.11	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003081

Deuteranopia (green-blind)

#00277C

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #21177e;
/* rgb */ color: rgb(33, 23, 126);
/* oklch */ color: oklch(30.7% 0.161 275.5);

Tailwind

colors: {
  custom: {
    50: '#6d57a5',
    500: '#21177e',
    950: '#000000',
  },
}

SCSS

$custom: #21177e;
$custom-light: #6d57a5;
$custom-dark: #000000;

JSON

{
  "hex": "#21177e",
  "rgb": {
    "r": 33,
    "g": 23,
    "b": 126
  },
  "hsl": {
    "h": 245.825,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30706,
    "c": 0.16146,
    "h": 275.5
  },
  "luminance": 0.02442
}

Semantic roles & 50–950 ramp

primary

#21177E

secondary

#A7B33E

accent

#EC3CDB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21177E

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

Preview Lab → · Contrast checker → · Palette generator →