#258AA3#258AA3

#258AA3 is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 58.9% C 0.096 H 218.6°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#258AA3
RGB	rgb(37, 138, 163)
HSL	hsl(192, 63%, 39%)
HSV	hsv(192, 77%, 64%)
CMYK	cmyk(77.3%, 15.3%, 0%, 36.1%)
CIE-LAB	lab(53.18, -19.50, -21.37)
CIE-LCH	lch(53.18, 28.93, 227.62°)
OKLab	oklab(58.85% -0.0748 -0.0597)
OKLCH	oklch(58.85% 0.096 218.6)
XYZ	xyz(16.4595, 21.2126, 37.8702)
Luminance	0.2122 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258AA3 #A33E25

analogous

#25A37D #258AA3 #254BA3

triadic

#258AA3 #A3258A #8AA325

tetradic

#258AA3 #7D25A3 #A33E25 #4BA325

square

#258AA3 #7D25A3 #A33E25 #4BA325

split-complementary

#258AA3 #A3254B #A37D25

monochromatic

#0E363F #1A6071 #258AA3 #34B2D1 #66C5DC

Accessibility & contrast

On white

4.01

#258AA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#258AA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258AA3

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258AA3	#FFFFFF	#000000	##000000
##258AA3	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A86A4

Deuteranopia (green-blind)

#697AA3

Tritanopia (blue-blind)

#009292

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #258aa3;
/* rgb */ color: rgb(37, 138, 163);
/* oklch */ color: oklch(58.9% 0.096 218.6);

Tailwind

colors: {
  custom: {
    50: '#74acbe',
    500: '#258aa3',
    950: '#000000',
  },
}

SCSS

$custom: #258aa3;
$custom-light: #74acbe;
$custom-dark: #000000;

JSON

{
  "hex": "#258aa3",
  "rgb": {
    "r": 37,
    "g": 138,
    "b": 163
  },
  "hsl": {
    "h": 191.905,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.58853,
    "c": 0.0957,
    "h": 218.6
  },
  "luminance": 0.21215
}

Semantic roles & 50–950 ramp

primary

#258AA3

secondary

#C27562

accent

#6242E6

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #258AA3

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

Preview Lab → · Contrast checker → · Palette generator →