#21306C#21306C

#21306C is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.4% C 0.106 H 269.3°. Best body text is #FFFFFF at 12.32:1 contrast (WCAG AA passes).

Color values

HEX	#21306C
RGB	rgb(33, 48, 108)
HSL	hsl(228, 53%, 28%)
HSV	hsv(228, 69%, 42%)
CMYK	cmyk(69.4%, 55.6%, 0%, 57.6%)
CIE-LAB	lab(22.01, 15.54, -36.90)
CIE-LCH	lch(22.01, 40.04, 292.84°)
OKLab	oklab(33.35% -0.0012 -0.106)
OKLCH	oklch(33.35% 0.106 269.3)
XYZ	xyz(4.3900, 3.5195, 14.6324)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21306C #6C5D21

analogous

#21556C #21306C #38216C

triadic

#21306C #6C2130 #306C21

tetradic

#21306C #6C2155 #6C5D21 #216C38

square

#21306C #6C2155 #6C5D21 #216C38

split-complementary

#21306C #6C3821 #556C21

monochromatic

#070A17 #131B3D #21306C #2F459B #425CC5

Accessibility & contrast

On white

12.32

#21306C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#21306C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21306C

12.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21306C	#FFFFFF	#000000	##FFFFFF
##21306C	1.00	12.32	1.70	12.32
#FFFFFF	12.32	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09386E

Deuteranopia (green-blind)

#00316B

Tritanopia (blue-blind)

#003E49

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #21306c;
/* rgb */ color: rgb(33, 48, 108);
/* oklch */ color: oklch(33.4% 0.106 269.3);

Tailwind

colors: {
  custom: {
    50: '#666797',
    500: '#21306c',
    950: '#000000',
  },
}

SCSS

$custom: #21306c;
$custom-light: #666797;
$custom-dark: #000000;

JSON

{
  "hex": "#21306c",
  "rgb": {
    "r": 33,
    "g": 48,
    "b": 108
  },
  "hsl": {
    "h": 228,
    "s": 53.191,
    "l": 27.647
  },
  "oklch": {
    "l": 0.33352,
    "c": 0.10598,
    "h": 269.3
  },
  "luminance": 0.0352
}

Semantic roles & 50–950 ramp

primary

#21306C

secondary

#A08E49

accent

#C04BDD

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #21306C

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

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