#258A9F#258A9F

#258A9F is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 58.7% C 0.093 H 215.2°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#258A9F
RGB	rgb(37, 138, 159)
HSL	hsl(190, 62%, 38%)
HSV	hsv(190, 77%, 62%)
CMYK	cmyk(76.7%, 13.2%, 0%, 37.6%)
CIE-LAB	lab(53.03, -20.84, -19.30)
CIE-LCH	lch(53.03, 28.41, 222.80°)
OKLab	oklab(58.68% -0.0764 -0.0538)
OKLCH	oklch(58.68% 0.093 215.2)
XYZ	xyz(16.1068, 21.0715, 36.0125)
Luminance	0.2107 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258A9F #9F3A25

analogous

#259F77 #258A9F #254D9F

triadic

#258A9F #9F258A #8A9F25

tetradic

#258A9F #77259F #9F3A25 #4D9F25

square

#258A9F #77259F #9F3A25 #4D9F25

split-complementary

#258A9F #9F254D #9F7725

monochromatic

#0E343C #195F6D #258A9F #32B4CF #64C6DB

Accessibility & contrast

On white

4.03

#258A9F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#258A9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258A9F

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258A9F	#FFFFFF	#000000	##000000
##258A9F	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B85A0

Deuteranopia (green-blind)

#6B799F

Tritanopia (blue-blind)

#009291

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #258a9f;
/* rgb */ color: rgb(37, 138, 159);
/* oklch */ color: oklch(58.7% 0.093 215.2);

Tailwind

colors: {
  custom: {
    50: '#74acbb',
    500: '#258a9f',
    950: '#000000',
  },
}

SCSS

$custom: #258a9f;
$custom-light: #74acbb;
$custom-dark: #000000;

JSON

{
  "hex": "#258a9f",
  "rgb": {
    "r": 37,
    "g": 138,
    "b": 159
  },
  "hsl": {
    "h": 190.328,
    "s": 62.245,
    "l": 38.431
  },
  "oklch": {
    "l": 0.58678,
    "c": 0.09348,
    "h": 215.2
  },
  "luminance": 0.21073
}

Semantic roles & 50–950 ramp

primary

#258A9F

secondary

#C0705F

accent

#5F42E5

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #258A9F

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

Preview Lab → · Contrast checker → · Palette generator →