#258E8B#258E8B

#258E8B is a mid, moderate teal. Relative luminance 0.216; OKLCH L 58.9% C 0.091 H 192.1°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#258E8B
RGB	rgb(37, 142, 139)
HSL	hsl(178, 59%, 35%)
HSV	hsv(178, 74%, 56%)
CMYK	cmyk(73.9%, 0%, 2.1%, 44.3%)
CIE-LAB	lab(53.60, -29.24, -6.87)
CIE-LCH	lch(53.60, 30.04, 193.22°)
OKLab	oklab(58.91% -0.0894 -0.0191)
OKLCH	oklch(58.91% 0.091 192.1)
XYZ	xyz(15.0940, 21.6016, 27.7951)
Luminance	0.2160 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258E8B #8E2528

analogous

#258E57 #258E8B #255C8E

triadic

#258E8B #8B258E #8E8B25

tetradic

#258E8B #57258E #8E2528 #5C8E25

square

#258E8B #57258E #8E2528 #5C8E25

split-complementary

#258E8B #8E255C #8E5725

monochromatic

#0C2D2C #185D5B #258E8B #32BFBB #5AD4D0

Accessibility & contrast

On white

3.95

#258E8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#258E8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258E8B

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258E8B	#FFFFFF	#000000	##000000
##258E8B	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85878B

Deuteranopia (green-blind)

#767B8C

Tritanopia (blue-blind)

#00928D

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #258e8b;
/* rgb */ color: rgb(37, 142, 139);
/* oklch */ color: oklch(58.9% 0.091 192.1);

Tailwind

colors: {
  custom: {
    50: '#72afac',
    500: '#258e8b',
    950: '#000000',
  },
}

SCSS

$custom: #258e8b;
$custom-light: #72afac;
$custom-dark: #000000;

JSON

{
  "hex": "#258e8b",
  "rgb": {
    "r": 37,
    "g": 142,
    "b": 139
  },
  "hsl": {
    "h": 178.286,
    "s": 58.659,
    "l": 35.098
  },
  "oklch": {
    "l": 0.58913,
    "c": 0.09142,
    "h": 192.1
  },
  "luminance": 0.21603
}

Semantic roles & 50–950 ramp

primary

#258E8B

secondary

#B95659

accent

#464AE2

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #258E8B

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

Preview Lab → · Contrast checker → · Palette generator →