#288D5B#288D5B

#288D5B is a mid, vivid teal. Relative luminance 0.203; OKLCH L 57.3% C 0.120 H 157.1°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#288D5B
RGB	rgb(40, 141, 91)
HSL	hsl(150, 56%, 35%)
HSV	hsv(150, 72%, 55%)
CMYK	cmyk(71.6%, 0%, 35.5%, 44.7%)
CIE-LAB	lab(52.12, -40.82, 18.58)
CIE-LCH	lch(52.12, 44.85, 155.53°)
OKLab	oklab(57.32% -0.1106 0.0468)
OKLCH	oklch(57.32% 0.12 157.1)
XYZ	xyz(12.2871, 20.2548, 13.1575)
Luminance	0.2026 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288D5B #8D285A

analogous

#288D28 #288D5B #288C8D

triadic

#288D5B #5B288D #8D5B28

tetradic

#288D5B #28288D #8D285A #8C8D28

square

#288D5B #28288D #8D285A #8C8D28

split-complementary

#288D5B #8D288C #8D2828

monochromatic

#0D2E1D #1A5D3C #288D5B #36BD7A #5ED198

Accessibility & contrast

On white

4.16

#288D5B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#288D5B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288D5B

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288D5B	#FFFFFF	#000000	##000000
##288D5B	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C8258

Deuteranopia (green-blind)

#7F795E

Tritanopia (blue-blind)

#008C80

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #288d5b;
/* rgb */ color: rgb(40, 141, 91);
/* oklch */ color: oklch(57.3% 0.120 157.1);

Tailwind

colors: {
  custom: {
    50: '#70af89',
    500: '#288d5b',
    950: '#000000',
  },
}

SCSS

$custom: #288d5b;
$custom-light: #70af89;
$custom-dark: #000000;

JSON

{
  "hex": "#288d5b",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 91
  },
  "hsl": {
    "h": 150.297,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.57321,
    "c": 0.12013,
    "h": 157.1
  },
  "luminance": 0.20256
}

Semantic roles & 50–950 ramp

primary

#288D5B

secondary

#B75A88

accent

#4993DF

background

#F7FAF8

surface

#EDF5F0

border

#C8CFCB

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #288D5B

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

Preview Lab → · Contrast checker → · Palette generator →