#21538F#21538F

#21538F is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 44.1% C 0.112 H 254.9°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#21538F
RGB	rgb(33, 83, 143)
HSL	hsl(213, 63%, 35%)
HSV	hsv(213, 77%, 56%)
CMYK	cmyk(76.9%, 42%, 0%, 43.9%)
CIE-LAB	lab(34.99, 5.36, -37.99)
CIE-LCH	lch(34.99, 38.37, 278.03°)
OKLab	oklab(44.08% -0.0293 -0.1086)
OKLCH	oklch(44.08% 0.112 254.9)
XYZ	xyz(8.6765, 8.4920, 27.1631)
Luminance	0.0849 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21538F #8F5D21

analogous

#218A8F #21538F #26218F

triadic

#21538F #8F2153 #538F21

tetradic

#21538F #8F218A #8F5D21 #218F26

square

#21538F #8F218A #8F5D21 #218F26

split-complementary

#21538F #8F2621 #8A8F21

monochromatic

#0A192C #16365D #21538F #2C70C1 #538FD7

Accessibility & contrast

On white

7.78

#21538F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#21538F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21538F

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21538F	#FFFFFF	#000000	##FFFFFF
##21538F	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365891

Deuteranopia (green-blind)

#244E8E

Tritanopia (blue-blind)

#00616A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #21538f;
/* rgb */ color: rgb(33, 83, 143);
/* oklch */ color: oklch(44.1% 0.112 254.9);

Tailwind

colors: {
  custom: {
    50: '#6d82b0',
    500: '#21538f',
    950: '#000000',
  },
}

SCSS

$custom: #21538f;
$custom-light: #6d82b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21538f",
  "rgb": {
    "r": 33,
    "g": 83,
    "b": 143
  },
  "hsl": {
    "h": 212.727,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.44076,
    "c": 0.11244,
    "h": 254.9
  },
  "luminance": 0.08493
}

Semantic roles & 50–950 ramp

primary

#21538F

secondary

#BB8B51

accent

#9B42E6

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #21538F

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

Preview Lab → · Contrast checker → · Palette generator →