#21435B#21435B

#21435B is a dark, muted cyan. Relative luminance 0.051; OKLCH L 36.9% C 0.057 H 241.4°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#21435B
RGB	rgb(33, 67, 91)
HSL	hsl(205, 47%, 24%)
HSV	hsv(205, 64%, 36%)
CMYK	cmyk(63.7%, 26.4%, 0%, 64.3%)
CIE-LAB	lab(27.00, -4.16, -17.99)
CIE-LCH	lch(27.00, 18.46, 256.99°)
OKLab	oklab(36.87% -0.0275 -0.0504)
OKLCH	oklch(36.87% 0.057 241.4)
XYZ	xyz(4.5220, 5.0926, 10.6402)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21435B #5B3921

analogous

#215B56 #21435B #21265B

triadic

#21435B #5B2143 #435B21

tetradic

#21435B #56215B #5B3921 #265B21

square

#21435B #56215B #5B3921 #265B21

split-complementary

#21435B #5B2126 #5B5621

monochromatic

#081116 #11222E #21435B #316488 #4285B5

Accessibility & contrast

On white

10.40

#21435B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#21435B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21435B

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21435B	#FFFFFF	#000000	##FFFFFF
##21435B	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38435C

Deuteranopia (green-blind)

#303D5B

Tritanopia (blue-blind)

#00494B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21435b;
/* rgb */ color: rgb(33, 67, 91);
/* oklch */ color: oklch(36.9% 0.057 241.4);

Tailwind

colors: {
  custom: {
    50: '#627789',
    500: '#21435b',
    950: '#000000',
  },
}

SCSS

$custom: #21435b;
$custom-light: #627789;
$custom-dark: #000000;

JSON

{
  "hex": "#21435b",
  "rgb": {
    "r": 33,
    "g": 67,
    "b": 91
  },
  "hsl": {
    "h": 204.828,
    "s": 46.774,
    "l": 24.314
  },
  "oklch": {
    "l": 0.36871,
    "c": 0.05745,
    "h": 241.4
  },
  "luminance": 0.05093
}

Semantic roles & 50–950 ramp

primary

#21435B

secondary

#8F6649

accent

#8851D6

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080B

muted

#7A7B7C

Preview Lab

Preview with #21435B

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

Preview Lab → · Contrast checker → · Palette generator →