#258F8B#258F8B

#258F8B is a mid, moderate teal. Relative luminance 0.219; OKLCH L 59.2% C 0.092 H 191.2°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#258F8B
RGB	rgb(37, 143, 139)
HSL	hsl(178, 59%, 35%)
HSV	hsv(178, 74%, 56%)
CMYK	cmyk(74.1%, 0%, 2.8%, 43.9%)
CIE-LAB	lab(53.92, -29.73, -6.39)
CIE-LCH	lch(53.92, 30.41, 192.14°)
OKLab	oklab(59.17% -0.0904 -0.0178)
OKLCH	oklch(59.17% 0.092 191.2)
XYZ	xyz(15.2434, 21.9005, 27.8449)
Luminance	0.2190 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258F8B #8F2529

analogous

#258F56 #258F8B #255E8F

triadic

#258F8B #8B258F #8F8B25

tetradic

#258F8B #56258F #8F2529 #5E8F25

square

#258F8B #56258F #8F2529 #5E8F25

split-complementary

#258F8B #8F255E #8F5625

monochromatic

#0C2E2C #185E5C #258F8B #32C0BA #5AD4D0

Accessibility & contrast

On white

3.90

#258F8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#258F8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258F8B

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258F8B	#FFFFFF	#000000	##000000
##258F8B	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86878B

Deuteranopia (green-blind)

#777C8C

Tritanopia (blue-blind)

#00938E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #258f8b;
/* rgb */ color: rgb(37, 143, 139);
/* oklch */ color: oklch(59.2% 0.092 191.2);

Tailwind

colors: {
  custom: {
    50: '#72b0ac',
    500: '#258f8b',
    950: '#000000',
  },
}

SCSS

$custom: #258f8b;
$custom-light: #72b0ac;
$custom-dark: #000000;

JSON

{
  "hex": "#258f8b",
  "rgb": {
    "r": 37,
    "g": 143,
    "b": 139
  },
  "hsl": {
    "h": 177.736,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.59173,
    "c": 0.09218,
    "h": 191.2
  },
  "luminance": 0.21902
}

Semantic roles & 50–950 ramp

primary

#258F8B

secondary

#B9575B

accent

#464CE2

background

#F7FAFA

surface

#EDF5F4

border

#C8CFCE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #258F8B

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

Preview Lab → · Contrast checker → · Palette generator →