#21297B#21297B

#21297B is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.3% C 0.138 H 272.1°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#21297B
RGB	rgb(33, 41, 123)
HSL	hsl(235, 58%, 31%)
HSV	hsv(235, 73%, 48%)
CMYK	cmyk(73.2%, 66.7%, 0%, 51.8%)
CIE-LAB	lab(21.35, 26.27, -47.59)
CIE-LCH	lch(21.35, 54.36, 298.90°)
OKLab	oklab(33.26% 0.0051 -0.1374)
OKLCH	oklch(33.26% 0.138 272.1)
XYZ	xyz(4.9941, 3.3388, 19.1163)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21297B #7B7321

analogous

#21567B #21297B #46217B

triadic

#21297B #7B2129 #297B21

tetradic

#21297B #7B2156 #7B7321 #217B46

square

#21297B #7B2156 #7B7321 #217B46

split-complementary

#21297B #7B4621 #567B21

monochromatic

#07091A #14194B #21297B #2E39AB #4854CE

Accessibility & contrast

On white

12.59

#21297B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#21297B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21297B

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21297B	#FFFFFF	#000000	##FFFFFF
##21297B	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377E

Deuteranopia (green-blind)

#002F79

Tritanopia (blue-blind)

#003E4E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #21297b;
/* rgb */ color: rgb(33, 41, 123);
/* oklch */ color: oklch(33.3% 0.138 272.1);

Tailwind

colors: {
  custom: {
    50: '#6a62a2',
    500: '#21297b',
    950: '#000000',
  },
}

SCSS

$custom: #21297b;
$custom-light: #6a62a2;
$custom-dark: #000000;

JSON

{
  "hex": "#21297b",
  "rgb": {
    "r": 33,
    "g": 41,
    "b": 123
  },
  "hsl": {
    "h": 234.667,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.33258,
    "c": 0.13754,
    "h": 272.1
  },
  "luminance": 0.03339
}

Semantic roles & 50–950 ramp

primary

#21297B

secondary

#AEA54A

accent

#D347E1

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #21297B

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

Preview Lab → · Contrast checker → · Palette generator →