#28404D#28404D

#28404D is a dark, muted cyan. Relative luminance 0.047; OKLCH L 35.8% C 0.037 H 232.9°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#28404D
RGB	rgb(40, 64, 77)
HSL	hsl(201, 32%, 23%)
HSV	hsv(201, 48%, 30%)
CMYK	cmyk(48.1%, 16.9%, 0%, 69.8%)
CIE-LAB	lab(25.72, -5.24, -10.79)
CIE-LCH	lch(25.72, 11.99, 244.09°)
OKLab	oklab(35.75% -0.0225 -0.0298)
OKLCH	oklch(35.75% 0.037 232.9)
XYZ	xyz(4.0476, 4.6535, 7.7047)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28404D #4D3528

analogous

#284D47 #28404D #282D4D

triadic

#28404D #4D2840 #404D28

tetradic

#28404D #47284D #4D3528 #2D4D28

square

#28404D #47284D #4D3528 #2D4D28

split-complementary

#28404D #4D282D #4D4728

monochromatic

#0A1114 #131F25 #28404D #3D6175 #52839E

Accessibility & contrast

On white

10.88

#28404D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#28404D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28404D

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28404D	#FFFFFF	#000000	##FFFFFF
##28404D	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3F4E

Deuteranopia (green-blind)

#353B4D

Tritanopia (blue-blind)

#194444

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #28404d;
/* rgb */ color: rgb(40, 64, 77);
/* oklch */ color: oklch(35.8% 0.037 232.9);

Tailwind

colors: {
  custom: {
    50: '#64747e',
    500: '#28404d',
    950: '#000000',
  },
}

SCSS

$custom: #28404d;
$custom-light: #64747e;
$custom-dark: #000000;

JSON

{
  "hex": "#28404d",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 77
  },
  "hsl": {
    "h": 201.081,
    "s": 31.624,
    "l": 22.941
  },
  "oklch": {
    "l": 0.35753,
    "c": 0.03737,
    "h": 232.9
  },
  "luminance": 0.04654
}

Semantic roles & 50–950 ramp

primary

#28404D

secondary

#806251

accent

#8460C8

background

#F6F7F7

surface

#EBEDEE

border

#C6C8C9

text

#05080A

muted

#7A7B7C

Preview Lab

Preview with #28404D

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

Preview Lab → · Contrast checker → · Palette generator →