#258F9B#258F9B

#258F9B is a mid, moderate teal. Relative luminance 0.224; OKLCH L 59.8% C 0.093 H 206.4°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#258F9B
RGB	rgb(37, 143, 155)
HSL	hsl(186, 61%, 38%)
HSV	hsv(186, 76%, 61%)
CMYK	cmyk(76.1%, 7.7%, 0%, 39.2%)
CIE-LAB	lab(54.45, -24.75, -14.83)
CIE-LCH	lch(54.45, 28.85, 210.92°)
OKLab	oklab(59.78% -0.0832 -0.0412)
OKLCH	oklch(59.78% 0.093 206.4)
XYZ	xyz(16.4992, 22.4028, 34.4586)
Luminance	0.2240 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258F9B #9B3125

analogous

#259B6C #258F9B #25549B

triadic

#258F9B #9B258F #8F9B25

tetradic

#258F9B #6C259B #9B3125 #549B25

square

#258F9B #6C259B #9B3125 #549B25

split-complementary

#258F9B #9B2554 #9B6C25

monochromatic

#0D3438 #19616A #258F9B #31BDCC #61CDD9

Accessibility & contrast

On white

3.83

#258F9B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#258F9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258F9B

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258F9B	#FFFFFF	#000000	##000000
##258F9B	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#82899C

Deuteranopia (green-blind)

#727D9B

Tritanopia (blue-blind)

#009593

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #258f9b;
/* rgb */ color: rgb(37, 143, 155);
/* oklch */ color: oklch(59.8% 0.093 206.4);

Tailwind

colors: {
  custom: {
    50: '#74b0b8',
    500: '#258f9b',
    950: '#000000',
  },
}

SCSS

$custom: #258f9b;
$custom-light: #74b0b8;
$custom-dark: #000000;

JSON

{
  "hex": "#258f9b",
  "rgb": {
    "r": 37,
    "g": 143,
    "b": 155
  },
  "hsl": {
    "h": 186.102,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.59779,
    "c": 0.09284,
    "h": 206.4
  },
  "luminance": 0.22405
}

Semantic roles & 50–950 ramp

primary

#258F9B

secondary

#BF675D

accent

#5443E5

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #258F9B

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

Preview Lab → · Contrast checker → · Palette generator →