#21276B#21276B

#21276B is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.4% C 0.117 H 273.7°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#21276B
RGB	rgb(33, 39, 107)
HSL	hsl(235, 53%, 27%)
HSV	hsv(235, 69%, 42%)
CMYK	cmyk(69.2%, 63.6%, 0%, 58%)
CIE-LAB	lab(19.37, 21.53, -40.54)
CIE-LCH	lch(19.37, 45.90, 297.97°)
OKLab	oklab(31.35% 0.0075 -0.1168)
OKLCH	oklch(31.35% 0.117 273.7)
XYZ	xyz(4.0057, 2.8356, 14.2433)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21276B #6B6521

analogous

#214C6B #21276B #40216B

triadic

#21276B #6B2127 #276B21

tetradic

#21276B #6B214C #6B6521 #216B40

square

#21276B #6B214C #6B6521 #216B40

split-complementary

#21276B #6B4021 #4C6B21

monochromatic

#070917 #13163C #21276B #2F389A #424CC5

Accessibility & contrast

On white

13.40

#21276B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#21276B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21276B

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21276B	#FFFFFF	#000000	##FFFFFF
##21276B	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326D

Deuteranopia (green-blind)

#002C6A

Tritanopia (blue-blind)

#003845

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #21276b;
/* rgb */ color: rgb(33, 39, 107);
/* oklch */ color: oklch(31.4% 0.117 273.7);

Tailwind

colors: {
  custom: {
    50: '#666196',
    500: '#21276b',
    950: '#000000',
  },
}

SCSS

$custom: #21276b;
$custom-light: #666196;
$custom-dark: #000000;

JSON

{
  "hex": "#21276b",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 107
  },
  "hsl": {
    "h": 235.135,
    "s": 52.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.31351,
    "c": 0.11702,
    "h": 273.7
  },
  "luminance": 0.02836
}

Semantic roles & 50–950 ramp

primary

#21276B

secondary

#9F9849

accent

#D14CDC

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #21276B

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

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