#21306A#21306A

#21306A is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.2% C 0.103 H 269.2°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#21306A
RGB	rgb(33, 48, 106)
HSL	hsl(228, 53%, 27%)
HSV	hsv(228, 69%, 42%)
CMYK	cmyk(68.9%, 54.7%, 0%, 58.4%)
CIE-LAB	lab(21.86, 14.75, -35.85)
CIE-LCH	lch(21.86, 38.77, 292.36°)
OKLab	oklab(33.19% -0.0014 -0.1029)
OKLCH	oklch(33.19% 0.103 269.2)
XYZ	xyz(4.2848, 3.4775, 14.0783)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21306A #6A5B21

analogous

#21556A #21306A #36216A

triadic

#21306A #6A2130 #306A21

tetradic

#21306A #6A2155 #6A5B21 #216A36

square

#21306A #6A2155 #6A5B21 #216A36

split-complementary

#21306A #6A3621 #556A21

monochromatic

#070B17 #121B3B #21306A #304599 #415CC4

Accessibility & contrast

On white

12.38

#21306A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#21306A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21306A

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21306A	#FFFFFF	#000000	##FFFFFF
##21306A	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D386C

Deuteranopia (green-blind)

#003169

Tritanopia (blue-blind)

#003E48

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #21306a;
/* rgb */ color: rgb(33, 48, 106);
/* oklch */ color: oklch(33.2% 0.103 269.2);

Tailwind

colors: {
  custom: {
    50: '#656795',
    500: '#21306a',
    950: '#000000',
  },
}

SCSS

$custom: #21306a;
$custom-light: #656795;
$custom-dark: #000000;

JSON

{
  "hex": "#21306a",
  "rgb": {
    "r": 33,
    "g": 48,
    "b": 106
  },
  "hsl": {
    "h": 227.671,
    "s": 52.518,
    "l": 27.255
  },
  "oklch": {
    "l": 0.33188,
    "c": 0.10289,
    "h": 269.2
  },
  "luminance": 0.03478
}

Semantic roles & 50–950 ramp

primary

#21306A

secondary

#9E8C49

accent

#BE4CDC

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #21306A

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

Preview Lab → · Contrast checker → · Palette generator →