#258CB2#258CB2

#258CB2 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.0% C 0.106 H 228.1°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#258CB2
RGB	rgb(37, 140, 178)
HSL	hsl(196, 66%, 42%)
HSV	hsv(196, 79%, 70%)
CMYK	cmyk(79.2%, 21.3%, 0%, 30.2%)
CIE-LAB	lab(54.41, -15.43, -28.10)
CIE-LCH	lch(54.41, 32.06, 241.22°)
OKLab	oklab(60.04% -0.0709 -0.079)
OKLCH	oklch(60.04% 0.106 228.1)
XYZ	xyz(18.1736, 22.3616, 45.4692)
Luminance	0.2236 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258CB2 #B24B25

analogous

#25B291 #258CB2 #2546B2

triadic

#258CB2 #B2258C #8CB225

tetradic

#258CB2 #9125B2 #B24B25 #46B225

square

#258CB2 #9125B2 #B24B25 #46B225

split-complementary

#258CB2 #B22546 #B29125

monochromatic

#103C4D #1A647F #258CB2 #3DADD7 #70C3E1

Accessibility & contrast

On white

3.84

#258CB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#258CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258CB2

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258CB2	#FFFFFF	#000000	##000000
##258CB2	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788AB4

Deuteranopia (green-blind)

#657CB1

Tritanopia (blue-blind)

#009799

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #258cb2;
/* rgb */ color: rgb(37, 140, 178);
/* oklch */ color: oklch(60.0% 0.106 228.1);

Tailwind

colors: {
  custom: {
    50: '#77adc9',
    500: '#258cb2',
    950: '#000000',
  },
}

SCSS

$custom: #258cb2;
$custom-light: #77adc9;
$custom-dark: #000000;

JSON

{
  "hex": "#258cb2",
  "rgb": {
    "r": 37,
    "g": 140,
    "b": 178
  },
  "hsl": {
    "h": 196.17,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.60039,
    "c": 0.10612,
    "h": 228.1
  },
  "luminance": 0.22364
}

Semantic roles & 50–950 ramp

primary

#258CB2

secondary

#C8846B

accent

#6D3FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258CB2

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

Preview Lab → · Contrast checker → · Palette generator →