#21138C#21138C

#21138C is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.182 H 274.1°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#21138C
RGB	rgb(33, 19, 140)
HSL	hsl(247, 76%, 31%)
HSV	hsv(247, 86%, 55%)
CMYK	cmyk(76.4%, 86.4%, 0%, 45.1%)
CIE-LAB	lab(18.72, 44.80, -62.65)
CIE-LCH	lch(18.72, 77.02, 305.57°)
OKLab	oklab(31.94% 0.0128 -0.1811)
OKLCH	oklch(31.94% 0.182 274.1)
XYZ	xyz(5.5921, 2.6820, 25.0288)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21138C #7E8C13

analogous

#13418C #21138C #5D138C

triadic

#21138C #8C2113 #138C21

tetradic

#21138C #8C1341 #7E8C13 #138C5D

square

#21138C #8C1341 #7E8C13 #138C5D

split-complementary

#21138C #8C5D13 #418C13

monochromatic

#080420 #140C56 #21138C #2E1AC2 #4A36E4

Accessibility & contrast

On white

13.67

#21138C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#21138C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21138C

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21138C	#FFFFFF	#000000	##FFFFFF
##21138C	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338F

Deuteranopia (green-blind)

#00288A

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #21138c;
/* rgb */ color: rgb(33, 19, 140);
/* oklch */ color: oklch(31.9% 0.182 274.1);

Tailwind

colors: {
  custom: {
    50: '#7156af',
    500: '#21138c',
    950: '#000000',
  },
}

SCSS

$custom: #21138c;
$custom-light: #7156af;
$custom-dark: #000000;

JSON

{
  "hex": "#21138c",
  "rgb": {
    "r": 33,
    "g": 19,
    "b": 140
  },
  "hsl": {
    "h": 246.942,
    "s": 76.101,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31943,
    "c": 0.18158,
    "h": 274.1
  },
  "luminance": 0.02683
}

Semantic roles & 50–950 ramp

primary

#21138C

secondary

#B1C03B

accent

#F335DD

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #21138C

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

Preview Lab → · Contrast checker → · Palette generator →