#21186C#21186C

#21186C is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.137 H 278.2°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#21186C
RGB	rgb(33, 24, 108)
HSL	hsl(246, 64%, 26%)
HSV	hsv(246, 78%, 42%)
CMYK	cmyk(69.4%, 77.8%, 0%, 57.6%)
CIE-LAB	lab(15.79, 31.80, -47.05)
CIE-LCH	lch(15.79, 56.79, 304.05°)
OKLab	oklab(28.79% 0.0195 -0.1359)
OKLCH	oklch(28.79% 0.137 278.2)
XYZ	xyz(3.6597, 2.0590, 14.3890)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21186C #636C18

analogous

#18396C #21186C #4B186C

triadic

#21186C #6C2118 #186C21

tetradic

#21186C #6C1839 #636C18 #186C4B

square

#21186C #6C1839 #636C18 #186C4B

split-complementary

#21186C #6C4B18 #396C18

monochromatic

#080619 #120D3A #21186C #30239E #402ED0

Accessibility & contrast

On white

14.87

#21186C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#21186C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21186C

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21186C	#FFFFFF	#000000	##FFFFFF
##21186C	1.00	14.87	1.41	14.87
#FFFFFF	14.87	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6E

Deuteranopia (green-blind)

#00246A

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #21186c;
/* rgb */ color: rgb(33, 24, 108);
/* oklch */ color: oklch(28.8% 0.137 278.2);

Tailwind

colors: {
  custom: {
    50: '#685697',
    500: '#21186c',
    950: '#000000',
  },
}

SCSS

$custom: #21186c;
$custom-light: #685697;
$custom-dark: #000000;

JSON

{
  "hex": "#21186c",
  "rgb": {
    "r": 33,
    "g": 24,
    "b": 108
  },
  "hsl": {
    "h": 246.429,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28789,
    "c": 0.13728,
    "h": 278.2
  },
  "luminance": 0.02059
}

Semantic roles & 50–950 ramp

primary

#21186C

secondary

#97A23E

accent

#E741D5

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #21186C

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

Preview Lab → · Contrast checker → · Palette generator →