#21528F#21528F

#21528F is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.8% C 0.114 H 255.6°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#21528F
RGB	rgb(33, 82, 143)
HSL	hsl(213, 63%, 35%)
HSV	hsv(213, 77%, 56%)
CMYK	cmyk(76.9%, 42.7%, 0%, 43.9%)
CIE-LAB	lab(34.68, 6.02, -38.48)
CIE-LCH	lch(34.68, 38.95, 278.89°)
OKLab	oklab(43.84% -0.0283 -0.11)
OKLCH	oklch(43.84% 0.114 255.6)
XYZ	xyz(8.6006, 8.3401, 27.1378)
Luminance	0.0834 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21528F #8F5E21

analogous

#21898F #21528F #27218F

triadic

#21528F #8F2152 #528F21

tetradic

#21528F #8F2189 #8F5E21 #218F27

square

#21528F #8F2189 #8F5E21 #218F27

split-complementary

#21528F #8F2721 #898F21

monochromatic

#0A192C #16355D #21528F #2C6FC1 #538ED7

Accessibility & contrast

On white

7.87

#21528F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#21528F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21528F

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21528F	#FFFFFF	#000000	##FFFFFF
##21528F	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345791

Deuteranopia (green-blind)

#214D8E

Tritanopia (blue-blind)

#006069

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #21528f;
/* rgb */ color: rgb(33, 82, 143);
/* oklch */ color: oklch(43.8% 0.114 255.6);

Tailwind

colors: {
  custom: {
    50: '#6d82b0',
    500: '#21528f',
    950: '#000000',
  },
}

SCSS

$custom: #21528f;
$custom-light: #6d82b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21528f",
  "rgb": {
    "r": 33,
    "g": 82,
    "b": 143
  },
  "hsl": {
    "h": 213.273,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.43839,
    "c": 0.1136,
    "h": 255.6
  },
  "luminance": 0.08341
}

Semantic roles & 50–950 ramp

primary

#21528F

secondary

#BB8C51

accent

#9D42E6

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #21528F

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

Preview Lab → · Contrast checker → · Palette generator →