#21177C#21177C

#21177C is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.159 H 275.8°. Best body text is #FFFFFF at 14.21:1 contrast (WCAG AA passes).

Color values

HEX	#21177C
RGB	rgb(33, 23, 124)
HSL	hsl(246, 69%, 29%)
HSV	hsv(246, 81%, 49%)
CMYK	cmyk(73.4%, 81.5%, 0%, 51.4%)
CIE-LAB	lab(17.42, 37.78, -54.70)
CIE-LCH	lch(17.42, 66.48, 304.63°)
OKLab	oklab(30.47% 0.016 -0.1582)
OKLCH	oklch(30.47% 0.159 275.8)
XYZ	xyz(4.5705, 2.3909, 19.2855)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21177C #727C17

analogous

#17407C #21177C #54177C

triadic

#21177C #7C2117 #177C21

tetradic

#21177C #7C1740 #727C17 #177C54

square

#21177C #7C1740 #727C17 #177C54

split-complementary

#21177C #7C5417 #407C17

monochromatic

#07051A #130D48 #21177C #2F21B0 #4434D9

Accessibility & contrast

On white

14.21

#21177C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#21177C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21177C

14.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21177C	#FFFFFF	#000000	##FFFFFF
##21177C	1.00	14.21	1.48	14.21
#FFFFFF	14.21	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7F

Deuteranopia (green-blind)

#00267A

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #21177c;
/* rgb */ color: rgb(33, 23, 124);
/* oklch */ color: oklch(30.5% 0.159 275.8);

Tailwind

colors: {
  custom: {
    50: '#6c57a3',
    500: '#21177c',
    950: '#000000',
  },
}

SCSS

$custom: #21177c;
$custom-light: #6c57a3;
$custom-dark: #000000;

JSON

{
  "hex": "#21177c",
  "rgb": {
    "r": 33,
    "g": 23,
    "b": 124
  },
  "hsl": {
    "h": 245.941,
    "s": 68.707,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30471,
    "c": 0.15895,
    "h": 275.8
  },
  "luminance": 0.02391
}

Semantic roles & 50–950 ramp

primary

#21177C

secondary

#A5B13E

accent

#EC3CDA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21177C

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

Preview Lab → · Contrast checker → · Palette generator →