#28434B#28434B

#28434B is a dark, muted cyan. Relative luminance 0.050; OKLCH L 36.5% C 0.036 H 218.6°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#28434B
RGB	rgb(40, 67, 75)
HSL	hsl(194, 30%, 23%)
HSV	hsv(194, 47%, 29%)
CMYK	cmyk(46.7%, 10.7%, 0%, 70.6%)
CIE-LAB	lab(26.66, -7.78, -8.06)
CIE-LCH	lch(26.66, 11.20, 226.00°)
OKLab	oklab(36.47% -0.0278 -0.0222)
OKLCH	oklch(36.47% 0.036 218.6)
XYZ	xyz(4.1518, 4.9731, 7.3964)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28434B #4B3028

analogous

#284B41 #28434B #28324B

triadic

#28434B #4B2843 #434B28

tetradic

#28434B #41284B #4B3028 #324B28

square

#28434B #41284B #4B3028 #324B28

split-complementary

#28434B #4B2832 #4B4128

monochromatic

#0B1214 #131F23 #28434B #3D6773 #538A9B

Accessibility & contrast

On white

10.53

#28434B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#28434B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28434B

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28434B	#FFFFFF	#000000	##FFFFFF
##28434B	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E414B

Deuteranopia (green-blind)

#383D4B

Tritanopia (blue-blind)

#194645

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #28434b;
/* rgb */ color: rgb(40, 67, 75);
/* oklch */ color: oklch(36.5% 0.036 218.6);

Tailwind

colors: {
  custom: {
    50: '#64777d',
    500: '#28434b',
    950: '#000000',
  },
}

SCSS

$custom: #28434b;
$custom-light: #64777d;
$custom-dark: #000000;

JSON

{
  "hex": "#28434b",
  "rgb": {
    "r": 40,
    "g": 67,
    "b": 75
  },
  "hsl": {
    "h": 193.714,
    "s": 30.435,
    "l": 22.549
  },
  "oklch": {
    "l": 0.36469,
    "c": 0.03554,
    "h": 218.6
  },
  "luminance": 0.04973
}

Semantic roles & 50–950 ramp

primary

#28434B

secondary

#7D5B51

accent

#7861C7

background

#F6F7F7

surface

#EBEDEE

border

#C6C8C9

text

#050809

muted

#7A7B7B

Preview Lab

Preview with #28434B

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

Preview Lab → · Contrast checker → · Palette generator →