#21406D#21406D

#21406D is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.2% C 0.086 H 257.8°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#21406D
RGB	rgb(33, 64, 109)
HSL	hsl(216, 54%, 28%)
HSV	hsv(216, 70%, 43%)
CMYK	cmyk(69.7%, 41.3%, 0%, 57.3%)
CIE-LAB	lab(27.00, 4.71, -29.55)
CIE-LCH	lch(27.00, 29.92, 279.05°)
OKLab	oklab(37.2% -0.0182 -0.0841)
OKLCH	oklch(37.2% 0.086 257.8)
XYZ	xyz(5.2199, 5.0937, 15.1731)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21406D #6D4E21

analogous

#21666D #21406D #28216D

triadic

#21406D #6D2140 #406D21

tetradic

#21406D #6D2166 #6D4E21 #216D28

square

#21406D #6D2166 #6D4E21 #216D28

split-complementary

#21406D #6D2821 #666D21

monochromatic

#070E17 #13243E #21406D #2F5C9C #4278C6

Accessibility & contrast

On white

10.40

#21406D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#21406D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21406D

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21406D	#FFFFFF	#000000	##FFFFFF
##21406D	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C446F

Deuteranopia (green-blind)

#213D6C

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21406d;
/* rgb */ color: rgb(33, 64, 109);
/* oklch */ color: oklch(37.2% 0.086 257.8);

Tailwind

colors: {
  custom: {
    50: '#657497',
    500: '#21406d',
    950: '#000000',
  },
}

SCSS

$custom: #21406d;
$custom-light: #657497;
$custom-dark: #000000;

JSON

{
  "hex": "#21406d",
  "rgb": {
    "r": 33,
    "g": 64,
    "b": 109
  },
  "hsl": {
    "h": 215.526,
    "s": 53.521,
    "l": 27.843
  },
  "oklch": {
    "l": 0.37195,
    "c": 0.08606,
    "h": 257.8
  },
  "luminance": 0.05094
}

Semantic roles & 50–950 ramp

primary

#21406D

secondary

#A17D49

accent

#A14BDD

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #21406D

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

Preview Lab → · Contrast checker → · Palette generator →