#21177A#21177A

#21177A is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.2% C 0.156 H 276.1°. Best body text is #FFFFFF at 14.30:1 contrast (WCAG AA passes).

Color values

HEX	#21177A
RGB	rgb(33, 23, 122)
HSL	hsl(246, 68%, 28%)
HSV	hsv(246, 81%, 48%)
CMYK	cmyk(73%, 81.1%, 0%, 52.2%)
CIE-LAB	lab(17.18, 37.12, -53.81)
CIE-LCH	lch(17.18, 65.37, 304.60°)
OKLab	oklab(30.24% 0.0165 -0.1556)
OKLCH	oklch(30.24% 0.156 276.1)
XYZ	xyz(4.4453, 2.3408, 18.6261)
Luminance	0.0234 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21177A #707A17

analogous

#173E7A #21177A #52177A

triadic

#21177A #7A2117 #177A21

tetradic

#21177A #7A173E #707A17 #177A52

square

#21177A #7A173E #707A17 #177A52

split-complementary

#21177A #7A5217 #3E7A17

monochromatic

#07051A #130D47 #21177A #2F21AD #4433D9

Accessibility & contrast

On white

14.30

#21177A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#21177A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21177A

14.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21177A	#FFFFFF	#000000	##FFFFFF
##21177A	1.00	14.30	1.47	14.30
#FFFFFF	14.30	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7D

Deuteranopia (green-blind)

#002678

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #21177a;
/* rgb */ color: rgb(33, 23, 122);
/* oklch */ color: oklch(30.2% 0.156 276.1);

Tailwind

colors: {
  custom: {
    50: '#6c57a2',
    500: '#21177a',
    950: '#000000',
  },
}

SCSS

$custom: #21177a;
$custom-light: #6c57a2;
$custom-dark: #000000;

JSON

{
  "hex": "#21177a",
  "rgb": {
    "r": 33,
    "g": 23,
    "b": 122
  },
  "hsl": {
    "h": 246.061,
    "s": 68.276,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30238,
    "c": 0.15643,
    "h": 276.1
  },
  "luminance": 0.02341
}

Semantic roles & 50–950 ramp

primary

#21177A

secondary

#A4AF3E

accent

#EB3DDA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21177A

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

Preview Lab → · Contrast checker → · Palette generator →