#288F9D#288F9D

#288F9D is a mid, moderate teal. Relative luminance 0.225; OKLCH L 59.9% C 0.092 H 208.4°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#288F9D
RGB	rgb(40, 143, 157)
HSL	hsl(187, 59%, 39%)
HSV	hsv(187, 75%, 62%)
CMYK	cmyk(74.5%, 8.9%, 0%, 38.4%)
CIE-LAB	lab(54.58, -23.74, -15.77)
CIE-LCH	lch(54.58, 28.50, 213.60°)
OKLab	oklab(59.93% -0.0811 -0.0439)
OKLCH	oklch(59.93% 0.092 208.4)
XYZ	xyz(16.7807, 22.5284, 35.3558)
Luminance	0.2253 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288F9D #9D3628

analogous

#289D70 #288F9D #28549D

triadic

#288F9D #9D288F #8F9D28

tetradic

#288F9D #70289D #9D3628 #549D28

square

#288F9D #70289D #9D3628 #549D28

split-complementary

#288F9D #9D2854 #9D7028

monochromatic

#0F363B #1C636C #288F9D #36BACC #67CBD8

Accessibility & contrast

On white

3.81

#288F9D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#288F9D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288F9D

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288F9D	#FFFFFF	#000000	##000000
##288F9D	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#82899E

Deuteranopia (green-blind)

#727D9D

Tritanopia (blue-blind)

#009693

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #288f9d;
/* rgb */ color: rgb(40, 143, 157);
/* oklch */ color: oklch(59.9% 0.092 208.4);

Tailwind

colors: {
  custom: {
    50: '#75b0ba',
    500: '#288f9d',
    950: '#000000',
  },
}

SCSS

$custom: #288f9d;
$custom-light: #75b0ba;
$custom-dark: #000000;

JSON

{
  "hex": "#288f9d",
  "rgb": {
    "r": 40,
    "g": 143,
    "b": 157
  },
  "hsl": {
    "h": 187.179,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.59926,
    "c": 0.09221,
    "h": 208.4
  },
  "luminance": 0.2253
}

Semantic roles & 50–950 ramp

primary

#288F9D

secondary

#BE6D62

accent

#5845E3

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1011

muted

#7C7F80

Preview Lab

Preview with #288F9D

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

Preview Lab → · Contrast checker → · Palette generator →