#258CA8#258CA8

#258CA8 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.6% C 0.099 H 220.7°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#258CA8
RGB	rgb(37, 140, 168)
HSL	hsl(193, 64%, 40%)
HSV	hsv(193, 78%, 66%)
CMYK	cmyk(78%, 16.7%, 0%, 34.1%)
CIE-LAB	lab(54.00, -18.88, -22.99)
CIE-LCH	lch(54.00, 29.75, 230.61°)
OKLab	oklab(59.58% -0.0747 -0.0643)
OKLCH	oklch(59.58% 0.099 220.7)
XYZ	xyz(17.2059, 21.9745, 40.3729)
Luminance	0.2198 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258CA8 #A84125

analogous

#25A882 #258CA8 #254BA8

triadic

#258CA8 #A8258C #8CA825

tetradic

#258CA8 #8225A8 #A84125 #4BA825

square

#258CA8 #8225A8 #A84125 #4BA825

split-complementary

#258CA8 #A8254B #A88225

monochromatic

#0F3844 #1A6276 #258CA8 #37B2D3 #69C5DE

Accessibility & contrast

On white

3.89

#258CA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#258CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258CA8

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258CA8	#FFFFFF	#000000	##000000
##258CA8	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B88A9

Deuteranopia (green-blind)

#6A7CA8

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #258ca8;
/* rgb */ color: rgb(37, 140, 168);
/* oklch */ color: oklch(59.6% 0.099 220.7);

Tailwind

colors: {
  custom: {
    50: '#75adc2',
    500: '#258ca8',
    950: '#000000',
  },
}

SCSS

$custom: #258ca8;
$custom-light: #75adc2;
$custom-dark: #000000;

JSON

{
  "hex": "#258ca8",
  "rgb": {
    "r": 37,
    "g": 140,
    "b": 168
  },
  "hsl": {
    "h": 192.824,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.59576,
    "c": 0.09863,
    "h": 220.7
  },
  "luminance": 0.21977
}

Semantic roles & 50–950 ramp

primary

#258CA8

secondary

#C47965

accent

#6441E7

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258CA8

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

Preview Lab → · Contrast checker → · Palette generator →