#21306F#21306F

#21306F is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.6% C 0.111 H 269.5°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#21306F
RGB	rgb(33, 48, 111)
HSL	hsl(228, 54%, 28%)
HSV	hsv(228, 70%, 44%)
CMYK	cmyk(70.3%, 56.8%, 0%, 56.5%)
CIE-LAB	lab(22.25, 16.72, -38.46)
CIE-LCH	lch(22.25, 41.94, 293.50°)
OKLab	oklab(33.6% -0.001 -0.1105)
OKLCH	oklch(33.6% 0.111 269.5)
XYZ	xyz(4.5524, 3.5845, 15.4878)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21306F #6F6021

analogous

#21576F #21306F #39216F

triadic

#21306F #6F2130 #306F21

tetradic

#21306F #6F2157 #6F6021 #216F39

square

#21306F #6F2157 #6F6021 #216F39

split-complementary

#21306F #6F3921 #576F21

monochromatic

#070A18 #131C40 #21306F #2F449E #435DC7

Accessibility & contrast

On white

12.23

#21306F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#21306F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21306F

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21306F	#FFFFFF	#000000	##FFFFFF
##21306F	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033971

Deuteranopia (green-blind)

#00326E

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #21306f;
/* rgb */ color: rgb(33, 48, 111);
/* oklch */ color: oklch(33.6% 0.111 269.5);

Tailwind

colors: {
  custom: {
    50: '#676899',
    500: '#21306f',
    950: '#000000',
  },
}

SCSS

$custom: #21306f;
$custom-light: #676899;
$custom-dark: #000000;

JSON

{
  "hex": "#21306f",
  "rgb": {
    "r": 33,
    "g": 48,
    "b": 111
  },
  "hsl": {
    "h": 228.462,
    "s": 54.167,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33601,
    "c": 0.11055,
    "h": 269.5
  },
  "luminance": 0.03585
}

Semantic roles & 50–950 ramp

primary

#21306F

secondary

#A39149

accent

#C14ADE

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #21306F

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

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