#258EA3#258EA3

#258EA3 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 59.9% C 0.096 H 214.6°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#258EA3
RGB	rgb(37, 142, 163)
HSL	hsl(190, 63%, 39%)
HSV	hsv(190, 77%, 64%)
CMYK	cmyk(77.3%, 12.9%, 0%, 36.1%)
CIE-LAB	lab(54.43, -21.62, -19.46)
CIE-LCH	lch(54.43, 29.09, 221.99°)
OKLab	oklab(59.86% -0.0788 -0.0543)
OKLCH	oklch(59.86% 0.096 214.6)
XYZ	xyz(17.0440, 22.3816, 38.0650)
Luminance	0.2238 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258EA3 #A33A25

analogous

#25A379 #258EA3 #254FA3

triadic

#258EA3 #A3258E #8EA325

tetradic

#258EA3 #7925A3 #A33A25 #4FA325

square

#258EA3 #7925A3 #A33A25 #4FA325

split-complementary

#258EA3 #A3254F #A37925

monochromatic

#0E373F #1A6371 #258EA3 #34B7D1 #66C9DC

Accessibility & contrast

On white

3.83

#258EA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#258EA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258EA3

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258EA3	#FFFFFF	#000000	##000000
##258EA3	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F89A4

Deuteranopia (green-blind)

#6E7DA3

Tritanopia (blue-blind)

#009695

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #258ea3;
/* rgb */ color: rgb(37, 142, 163);
/* oklch */ color: oklch(59.9% 0.096 214.6);

Tailwind

colors: {
  custom: {
    50: '#74afbe',
    500: '#258ea3',
    950: '#000000',
  },
}

SCSS

$custom: #258ea3;
$custom-light: #74afbe;
$custom-dark: #000000;

JSON

{
  "hex": "#258ea3",
  "rgb": {
    "r": 37,
    "g": 142,
    "b": 163
  },
  "hsl": {
    "h": 190,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.59858,
    "c": 0.09567,
    "h": 214.6
  },
  "luminance": 0.22384
}

Semantic roles & 50–950 ramp

primary

#258EA3

secondary

#C27262

accent

#5D42E6

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258EA3

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

Preview Lab → · Contrast checker → · Palette generator →