#21177D#21177D

#21177D is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.6% C 0.160 H 275.6°. Best body text is #FFFFFF at 14.16:1 contrast (WCAG AA passes).

Color values

HEX	#21177D
RGB	rgb(33, 23, 125)
HSL	hsl(246, 69%, 29%)
HSV	hsv(246, 82%, 49%)
CMYK	cmyk(73.6%, 81.6%, 0%, 51%)
CIE-LAB	lab(17.54, 38.11, -55.14)
CIE-LCH	lch(17.54, 67.03, 304.65°)
OKLab	oklab(30.59% 0.0157 -0.1594)
OKLCH	oklch(30.59% 0.16 275.6)
XYZ	xyz(4.6341, 2.4164, 19.6202)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21177D #737D17

analogous

#17407D #21177D #54177D

triadic

#21177D #7D2117 #177D21

tetradic

#21177D #7D1740 #737D17 #177D54

square

#21177D #7D1740 #737D17 #177D54

split-complementary

#21177D #7D5417 #407D17

monochromatic

#07051A #130D49 #21177D #2F21B1 #4535DA

Accessibility & contrast

On white

14.16

#21177D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#21177D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21177D

14.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21177D	#FFFFFF	#000000	##FFFFFF
##21177D	1.00	14.16	1.48	14.16
#FFFFFF	14.16	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F80

Deuteranopia (green-blind)

#00267B

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #21177d;
/* rgb */ color: rgb(33, 23, 125);
/* oklch */ color: oklch(30.6% 0.160 275.6);

Tailwind

colors: {
  custom: {
    50: '#6c57a4',
    500: '#21177d',
    950: '#000000',
  },
}

SCSS

$custom: #21177d;
$custom-light: #6c57a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21177d",
  "rgb": {
    "r": 33,
    "g": 23,
    "b": 125
  },
  "hsl": {
    "h": 245.882,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30588,
    "c": 0.1602,
    "h": 275.6
  },
  "luminance": 0.02417
}

Semantic roles & 50–950 ramp

primary

#21177D

secondary

#A6B23E

accent

#EC3CDB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21177D

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

Preview Lab → · Contrast checker → · Palette generator →