#258EA6#258EA6

#258EA6 is a mid, moderate cyan. Relative luminance 0.225; OKLCH L 60.0% C 0.097 H 217.1°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#258EA6
RGB	rgb(37, 142, 166)
HSL	hsl(191, 64%, 40%)
HSV	hsv(191, 78%, 65%)
CMYK	cmyk(77.7%, 14.5%, 0%, 34.9%)
CIE-LAB	lab(54.54, -20.62, -21.01)
CIE-LCH	lch(54.54, 29.44, 225.54°)
OKLab	oklab(59.99% -0.0775 -0.0587)
OKLCH	oklch(59.99% 0.097 217.1)
XYZ	xyz(17.3160, 22.4904, 39.4975)
Luminance	0.2249 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258EA6 #A63D25

analogous

#25A67E #258EA6 #254DA6

triadic

#258EA6 #A6258E #8EA625

tetradic

#258EA6 #7E25A6 #A63D25 #4DA625

square

#258EA6 #7E25A6 #A63D25 #4DA625

split-complementary

#258EA6 #A6254D #A67E25

monochromatic

#0F3842 #1A6374 #258EA6 #36B5D2 #68C8DD

Accessibility & contrast

On white

3.82

#258EA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#258EA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258EA6

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258EA6	#FFFFFF	#000000	##000000
##258EA6	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8AA7

Deuteranopia (green-blind)

#6D7DA6

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #258ea6;
/* rgb */ color: rgb(37, 142, 166);
/* oklch */ color: oklch(60.0% 0.097 217.1);

Tailwind

colors: {
  custom: {
    50: '#75afc0',
    500: '#258ea6',
    950: '#000000',
  },
}

SCSS

$custom: #258ea6;
$custom-light: #75afc0;
$custom-dark: #000000;

JSON

{
  "hex": "#258ea6",
  "rgb": {
    "r": 37,
    "g": 142,
    "b": 166
  },
  "hsl": {
    "h": 191.163,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.59987,
    "c": 0.09725,
    "h": 217.1
  },
  "luminance": 0.22492
}

Semantic roles & 50–950 ramp

primary

#258EA6

secondary

#C37564

accent

#6041E7

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258EA6

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

Preview Lab → · Contrast checker → · Palette generator →