#258E9B#258E9B

#258E9B is a mid, moderate teal. Relative luminance 0.221; OKLCH L 59.5% C 0.093 H 207.4°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#258E9B
RGB	rgb(37, 142, 155)
HSL	hsl(187, 61%, 38%)
HSV	hsv(187, 76%, 61%)
CMYK	cmyk(76.1%, 8.4%, 0%, 39.2%)
CIE-LAB	lab(54.14, -24.24, -15.30)
CIE-LCH	lch(54.14, 28.67, 212.26°)
OKLab	oklab(59.52% -0.0822 -0.0426)
OKLCH	oklch(59.52% 0.093 207.4)
XYZ	xyz(16.3498, 22.1039, 34.4088)
Luminance	0.2211 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258E9B #9B3225

analogous

#259B6D #258E9B #25539B

triadic

#258E9B #9B258E #8E9B25

tetradic

#258E9B #6D259B #9B3225 #539B25

square

#258E9B #6D259B #9B3225 #539B25

split-complementary

#258E9B #9B2553 #9B6D25

monochromatic

#0D3338 #19616A #258E9B #31BBCC #61CCD9

Accessibility & contrast

On white

3.87

#258E9B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#258E9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258E9B

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258E9B	#FFFFFF	#000000	##000000
##258E9B	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#81889C

Deuteranopia (green-blind)

#717C9B

Tritanopia (blue-blind)

#009592

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #258e9b;
/* rgb */ color: rgb(37, 142, 155);
/* oklch */ color: oklch(59.5% 0.093 207.4);

Tailwind

colors: {
  custom: {
    50: '#73afb8',
    500: '#258e9b',
    950: '#000000',
  },
}

SCSS

$custom: #258e9b;
$custom-light: #73afb8;
$custom-dark: #000000;

JSON

{
  "hex": "#258e9b",
  "rgb": {
    "r": 37,
    "g": 142,
    "b": 155
  },
  "hsl": {
    "h": 186.61,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.59525,
    "c": 0.09254,
    "h": 207.4
  },
  "luminance": 0.22106
}

Semantic roles & 50–950 ramp

primary

#258E9B

secondary

#BF685D

accent

#5543E5

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #258E9B

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

Preview Lab → · Contrast checker → · Palette generator →