#21406E#21406E

#21406E is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.3% C 0.088 H 258.2°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#21406E
RGB	rgb(33, 64, 110)
HSL	hsl(216, 54%, 28%)
HSV	hsv(216, 70%, 43%)
CMYK	cmyk(70%, 41.8%, 0%, 56.9%)
CIE-LAB	lab(27.06, 5.10, -30.09)
CIE-LCH	lch(27.06, 30.52, 279.62°)
OKLab	oklab(37.26% -0.0179 -0.0857)
OKLCH	oklch(37.26% 0.088 258.2)
XYZ	xyz(5.2741, 5.1154, 15.4583)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21406E #6E4F21

analogous

#21666E #21406E #28216E

triadic

#21406E #6E2140 #406E21

tetradic

#21406E #6E2166 #6E4F21 #216E28

square

#21406E #6E2166 #6E4F21 #216E28

split-complementary

#21406E #6E2821 #666E21

monochromatic

#070E18 #13253F #21406E #2F5B9D #4378C7

Accessibility & contrast

On white

10.38

#21406E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#21406E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21406E

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21406E	#FFFFFF	#000000	##FFFFFF
##21406E	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4470

Deuteranopia (green-blind)

#203D6D

Tritanopia (blue-blind)

#004B51

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21406e;
/* rgb */ color: rgb(33, 64, 110);
/* oklch */ color: oklch(37.3% 0.088 258.2);

Tailwind

colors: {
  custom: {
    50: '#667498',
    500: '#21406e',
    950: '#000000',
  },
}

SCSS

$custom: #21406e;
$custom-light: #667498;
$custom-dark: #000000;

JSON

{
  "hex": "#21406e",
  "rgb": {
    "r": 33,
    "g": 64,
    "b": 110
  },
  "hsl": {
    "h": 215.844,
    "s": 53.846,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37262,
    "c": 0.08756,
    "h": 258.2
  },
  "luminance": 0.05116
}

Semantic roles & 50–950 ramp

primary

#21406E

secondary

#A27E49

accent

#A24BDD

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #21406E

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

Preview Lab → · Contrast checker → · Palette generator →