#288C63#288C63

#288C63 is a mid, moderate teal. Relative luminance 0.201; OKLCH L 57.2% C 0.111 H 161.6°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#288C63
RGB	rgb(40, 140, 99)
HSL	hsl(155, 56%, 35%)
HSV	hsv(155, 71%, 55%)
CMYK	cmyk(71.4%, 0%, 29.3%, 45.1%)
CIE-LAB	lab(51.96, -38.62, 13.82)
CIE-LCH	lch(51.96, 41.02, 160.31°)
OKLab	oklab(57.24% -0.1056 0.0352)
OKLCH	oklch(57.24% 0.111 161.6)
XYZ	xyz(12.5040, 20.1067, 15.0240)
Luminance	0.2011 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288C63 #8C2851

analogous

#288C31 #288C63 #28838C

triadic

#288C63 #63288C #8C6328

tetradic

#288C63 #31288C #8C2851 #838C28

square

#288C63 #31288C #8C2851 #838C28

split-complementary

#288C63 #8C2883 #8C3128

monochromatic

#0D2D20 #1A5C41 #288C63 #36BC85 #5ED1A2

Accessibility & contrast

On white

4.18

#288C63 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#288C63 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288C63

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288C63	#FFFFFF	#000000	##000000
##288C63	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A8161

Deuteranopia (green-blind)

#7D7866

Tritanopia (blue-blind)

#008C81

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #288c63;
/* rgb */ color: rgb(40, 140, 99);
/* oklch */ color: oklch(57.2% 0.111 161.6);

Tailwind

colors: {
  custom: {
    50: '#70ae8f',
    500: '#288c63',
    950: '#000000',
  },
}

SCSS

$custom: #288c63;
$custom-light: #70ae8f;
$custom-dark: #000000;

JSON

{
  "hex": "#288c63",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 99
  },
  "hsl": {
    "h": 155.4,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.57238,
    "c": 0.1113,
    "h": 161.6
  },
  "luminance": 0.20108
}

Semantic roles & 50–950 ramp

primary

#288C63

secondary

#B65A80

accent

#4986DF

background

#F7FAF8

surface

#EDF4F0

border

#C8CECB

text

#08100C

muted

#7B7F7D

Preview Lab

Preview with #288C63

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

Preview Lab → · Contrast checker → · Palette generator →