#258ADC#258ADC

#258ADC is a mid, vivid cyan. Relative luminance 0.237; OKLCH L 61.8% C 0.152 H 248.5°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#258ADC
RGB	rgb(37, 138, 220)
HSL	hsl(207, 72%, 50%)
HSV	hsv(207, 83%, 86%)
CMYK	cmyk(83.2%, 37.3%, 0%, 13.7%)
CIE-LAB	lab(55.82, 0.94, -49.67)
CIE-LCH	lch(55.82, 49.67, 271.08°)
OKLab	oklab(61.82% -0.0559 -0.1418)
OKLCH	oklch(61.82% 0.152 248.5)
XYZ	xyz(22.7647, 23.7347, 71.0777)
Luminance	0.2374 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258ADC #DC7725

analogous

#25DCD2 #258ADC #252FDC

triadic

#258ADC #DC258A #8ADC25

tetradic

#258ADC #D225DC #DC7725 #2FDC25

square

#258ADC #D225DC #DC7725 #2FDC25

split-complementary

#258ADC #DC252F #DCD225

monochromatic

#134874 #1B69A9 #258ADC #5AA6E4 #8EC3ED

Accessibility & contrast

On white

3.65

#258ADC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#258ADC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258ADC

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258ADC	#FFFFFF	#000000	##000000
##258ADC	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#638FDF

Deuteranopia (green-blind)

#477EDA

Tritanopia (blue-blind)

#009EA8

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #258adc;
/* rgb */ color: rgb(37, 138, 220);
/* oklch */ color: oklch(61.8% 0.152 248.5);

Tailwind

colors: {
  custom: {
    50: '#7eabe7',
    500: '#258adc',
    950: '#000000',
  },
}

SCSS

$custom: #258adc;
$custom-light: #7eabe7;
$custom-dark: #000000;

JSON

{
  "hex": "#258adc",
  "rgb": {
    "r": 37,
    "g": 138,
    "b": 220
  },
  "hsl": {
    "h": 206.885,
    "s": 72.332,
    "l": 50.392
  },
  "oklch": {
    "l": 0.61817,
    "c": 0.15239,
    "h": 248.5
  },
  "luminance": 0.23738
}

Semantic roles & 50–950 ramp

primary

#258ADC

secondary

#D7AA86

accent

#8A39EF

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C1016

muted

#7D7F84

Preview Lab

Preview with #258ADC

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

Preview Lab → · Contrast checker → · Palette generator →