#21187E#21187E

#21187E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.161 H 275.4°. Best body text is #FFFFFF at 14.03:1 contrast (WCAG AA passes).

Color values

HEX	#21187E
RGB	rgb(33, 24, 126)
HSL	hsl(245, 68%, 29%)
HSV	hsv(245, 81%, 49%)
CMYK	cmyk(73.8%, 81%, 0%, 50.6%)
CIE-LAB	lab(17.84, 37.90, -55.28)
CIE-LCH	lch(17.84, 67.03, 304.44°)
OKLab	oklab(30.84% 0.015 -0.1598)
OKLCH	oklch(30.84% 0.161 275.4)
XYZ	xyz(4.7185, 2.4825, 19.9651)
Luminance	0.0248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21187E #757E18

analogous

#18427E #21187E #54187E

triadic

#21187E #7E2118 #187E21

tetradic

#21187E #7E1842 #757E18 #187E54

square

#21187E #7E1842 #757E18 #187E54

split-complementary

#21187E #7E5418 #427E18

monochromatic

#07051A #140E4B #21187E #2E22B1 #4637D9

Accessibility & contrast

On white

14.03

#21187E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#21187E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21187E

14.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21187E	#FFFFFF	#000000	##FFFFFF
##21187E	1.00	14.03	1.50	14.03
#FFFFFF	14.03	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003081

Deuteranopia (green-blind)

#00277C

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #21187e;
/* rgb */ color: rgb(33, 24, 126);
/* oklch */ color: oklch(30.8% 0.161 275.4);

Tailwind

colors: {
  custom: {
    50: '#6d57a5',
    500: '#21187e',
    950: '#000000',
  },
}

SCSS

$custom: #21187e;
$custom-light: #6d57a5;
$custom-dark: #000000;

JSON

{
  "hex": "#21187e",
  "rgb": {
    "r": 33,
    "g": 24,
    "b": 126
  },
  "hsl": {
    "h": 245.294,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30835,
    "c": 0.16054,
    "h": 275.4
  },
  "luminance": 0.02483
}

Semantic roles & 50–950 ramp

primary

#21187E

secondary

#A8B23F

accent

#EB3DDC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21187E

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

Preview Lab → · Contrast checker → · Palette generator →