#258C99#258C99

#258C99 is a mid, moderate teal. Relative luminance 0.214; OKLCH L 58.9% C 0.091 H 207.6°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#258C99
RGB	rgb(37, 140, 153)
HSL	hsl(187, 61%, 37%)
HSV	hsv(187, 76%, 60%)
CMYK	cmyk(75.8%, 8.5%, 0%, 40%)
CIE-LAB	lab(53.44, -23.86, -15.21)
CIE-LCH	lch(53.44, 28.30, 212.52°)
OKLab	oklab(58.93% -0.081 -0.0423)
OKLCH	oklch(58.93% 0.091 207.6)
XYZ	xyz(15.8883, 21.4475, 33.4332)
Luminance	0.2145 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258C99 #993225

analogous

#25996C #258C99 #255299

triadic

#258C99 #99258C #8C9925

tetradic

#258C99 #6C2599 #993225 #529925

square

#258C99 #6C2599 #993225 #529925

split-complementary

#258C99 #992552 #996C25

monochromatic

#0D3236 #195F68 #258C99 #31B9CA #60CBD9

Accessibility & contrast

On white

3.97

#258C99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#258C99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258C99

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258C99	#FFFFFF	#000000	##000000
##258C99	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F869A

Deuteranopia (green-blind)

#6F7B99

Tritanopia (blue-blind)

#009390

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #258c99;
/* rgb */ color: rgb(37, 140, 153);
/* oklch */ color: oklch(58.9% 0.091 207.6);

Tailwind

colors: {
  custom: {
    50: '#73aeb7',
    500: '#258c99',
    950: '#000000',
  },
}

SCSS

$custom: #258c99;
$custom-light: #73aeb7;
$custom-dark: #000000;

JSON

{
  "hex": "#258c99",
  "rgb": {
    "r": 37,
    "g": 140,
    "b": 153
  },
  "hsl": {
    "h": 186.724,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.58934,
    "c": 0.09138,
    "h": 207.6
  },
  "luminance": 0.21449
}

Semantic roles & 50–950 ramp

primary

#258C99

secondary

#BE675C

accent

#5644E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #258C99

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

Preview Lab → · Contrast checker → · Palette generator →