#284B40#284B40

#284B40 is a dark, muted teal. Relative luminance 0.059; OKLCH L 38.3% C 0.045 H 171.5°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#284B40
RGB	rgb(40, 75, 64)
HSL	hsl(161, 30%, 23%)
HSV	hsv(161, 47%, 29%)
CMYK	cmyk(46.7%, 0%, 14.7%, 70.6%)
CIE-LAB	lab(29.04, -15.75, 2.61)
CIE-LCH	lch(29.04, 15.96, 170.59°)
OKLab	oklab(38.26% -0.0448 0.0067)
OKLCH	oklch(38.26% 0.045 171.5)
XYZ	xyz(4.3162, 5.8531, 5.7518)
Luminance	0.0585 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B40 #4B2833

analogous

#284B2E #284B40 #28444B

triadic

#284B40 #40284B #4B4028

tetradic

#284B40 #2E284B #4B2833 #444B28

square

#284B40 #2E284B #4B2833 #444B28

split-complementary

#284B40 #4B2844 #4B2E28

monochromatic

#0B1411 #13231E #284B40 #3D7362 #539B84

Accessibility & contrast

On white

9.67

#284B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#284B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B40

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B40	#FFFFFF	#000000	##FFFFFF
##284B40	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49473F

Deuteranopia (green-blind)

#434341

Tritanopia (blue-blind)

#1D4C48

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #284b40;
/* rgb */ color: rgb(40, 75, 64);
/* oklch */ color: oklch(38.3% 0.045 171.5);

Tailwind

colors: {
  custom: {
    50: '#647d74',
    500: '#284b40',
    950: '#000000',
  },
}

SCSS

$custom: #284b40;
$custom-light: #647d74;
$custom-dark: #000000;

JSON

{
  "hex": "#284b40",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 64
  },
  "hsl": {
    "h": 161.143,
    "s": 30.435,
    "l": 22.549
  },
  "oklch": {
    "l": 0.38255,
    "c": 0.0453,
    "h": 171.5
  },
  "luminance": 0.05853
}

Semantic roles & 50–950 ramp

primary

#284B40

secondary

#7D515F

accent

#6181C7

background

#F6F7F7

surface

#EBEEED

border

#C6C9C8

text

#050908

muted

#7A7B7B

Preview Lab

Preview with #284B40

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

Preview Lab → · Contrast checker → · Palette generator →