#21128F#21128F

#21128F is a dark, vivid blue. Relative luminance 0.027; OKLCH L 32.2% C 0.186 H 273.8°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#21128F
RGB	rgb(33, 18, 143)
HSL	hsl(247, 78%, 32%)
HSV	hsv(247, 87%, 56%)
CMYK	cmyk(76.9%, 87.4%, 0%, 43.9%)
CIE-LAB	lab(18.96, 46.14, -64.12)
CIE-LCH	lch(18.96, 78.99, 305.74°)
OKLab	oklab(32.22% 0.0122 -0.1854)
OKLCH	oklch(32.22% 0.186 273.8)
XYZ	xyz(5.7998, 2.7385, 26.2042)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21128F #808F12

analogous

#12428F #21128F #60128F

triadic

#21128F #8F2112 #128F21

tetradic

#21128F #8F1242 #808F12 #128F60

square

#21128F #8F1242 #808F12 #128F60

split-complementary

#21128F #8F6012 #428F12

monochromatic

#080422 #140B59 #21128F #2E19C5 #4B36E6

Accessibility & contrast

On white

13.57

#21128F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#21128F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21128F

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21128F	#FFFFFF	#000000	##FFFFFF
##21128F	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003492

Deuteranopia (green-blind)

#00288D

Tritanopia (blue-blind)

#003C54

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #21128f;
/* rgb */ color: rgb(33, 18, 143);
/* oklch */ color: oklch(32.2% 0.186 273.8);

Tailwind

colors: {
  custom: {
    50: '#7156b1',
    500: '#21128f',
    950: '#000000',
  },
}

SCSS

$custom: #21128f;
$custom-light: #7156b1;
$custom-dark: #000000;

JSON

{
  "hex": "#21128f",
  "rgb": {
    "r": 33,
    "g": 18,
    "b": 143
  },
  "hsl": {
    "h": 247.2,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32219,
    "c": 0.18577,
    "h": 273.8
  },
  "luminance": 0.02739
}

Semantic roles & 50–950 ramp

primary

#21128F

secondary

#B3C33A

accent

#F434DD

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #21128F

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

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