#21357C#21357C

#21357C is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.8% C 0.123 H 267.8°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#21357C
RGB	rgb(33, 53, 124)
HSL	hsl(227, 58%, 31%)
HSV	hsv(227, 73%, 49%)
CMYK	cmyk(73.4%, 57.3%, 0%, 51.4%)
CIE-LAB	lab(24.72, 18.33, -42.74)
CIE-LCH	lch(24.72, 46.51, 293.21°)
OKLab	oklab(35.78% -0.0048 -0.1231)
OKLCH	oklch(35.78% 0.123 267.8)
XYZ	xyz(5.5371, 4.3242, 19.6077)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21357C #7C6821

analogous

#21627C #21357C #3A217C

triadic

#21357C #7C2135 #357C21

tetradic

#21357C #7C2162 #7C6821 #217C3A

square

#21357C #7C2162 #7C6821 #217C3A

split-complementary

#21357C #7C3A21 #627C21

monochromatic

#070C1B #14204C #21357C #2E4AAC #4966CF

Accessibility & contrast

On white

11.26

#21357C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#21357C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21357C

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21357C	#FFFFFF	#000000	##FFFFFF
##21357C	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7E

Deuteranopia (green-blind)

#00377B

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #21357c;
/* rgb */ color: rgb(33, 53, 124);
/* oklch */ color: oklch(35.8% 0.123 267.8);

Tailwind

colors: {
  custom: {
    50: '#696ba2',
    500: '#21357c',
    950: '#000000',
  },
}

SCSS

$custom: #21357c;
$custom-light: #696ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#21357c",
  "rgb": {
    "r": 33,
    "g": 53,
    "b": 124
  },
  "hsl": {
    "h": 226.813,
    "s": 57.962,
    "l": 30.784
  },
  "oklch": {
    "l": 0.35782,
    "c": 0.12316,
    "h": 267.8
  },
  "luminance": 0.04325
}

Semantic roles & 50–950 ramp

primary

#21357C

secondary

#AF994A

accent

#BF47E1

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #21357C

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

Preview Lab → · Contrast checker → · Palette generator →