#258CB0#258CB0

#258CB0 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 59.9% C 0.104 H 226.7°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#258CB0
RGB	rgb(37, 140, 176)
HSL	hsl(196, 65%, 42%)
HSV	hsv(196, 79%, 69%)
CMYK	cmyk(79%, 20.5%, 0%, 31%)
CIE-LAB	lab(54.32, -16.13, -27.08)
CIE-LCH	lch(54.32, 31.52, 239.22°)
OKLab	oklab(59.94% -0.0716 -0.0761)
OKLCH	oklch(59.94% 0.104 226.7)
XYZ	xyz(17.9743, 22.2819, 44.4194)
Luminance	0.2228 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258CB0 #B04925

analogous

#25B08F #258CB0 #2546B0

triadic

#258CB0 #B0258C #8CB025

tetradic

#258CB0 #8F25B0 #B04925 #46B025

square

#258CB0 #8F25B0 #B04925 #46B025

split-complementary

#258CB0 #B02546 #B08F25

monochromatic

#103C4B #1A647D #258CB0 #3CAED6 #6FC3E1

Accessibility & contrast

On white

3.85

#258CB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#258CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258CB0

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258CB0	#FFFFFF	#000000	##000000
##258CB0	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7989B2

Deuteranopia (green-blind)

#667CB0

Tritanopia (blue-blind)

#009698

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #258cb0;
/* rgb */ color: rgb(37, 140, 176);
/* oklch */ color: oklch(59.9% 0.104 226.7);

Tailwind

colors: {
  custom: {
    50: '#76adc7',
    500: '#258cb0',
    950: '#000000',
  },
}

SCSS

$custom: #258cb0;
$custom-light: #76adc7;
$custom-dark: #000000;

JSON

{
  "hex": "#258cb0",
  "rgb": {
    "r": 37,
    "g": 140,
    "b": 176
  },
  "hsl": {
    "h": 195.54,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.59944,
    "c": 0.10448,
    "h": 226.7
  },
  "luminance": 0.22284
}

Semantic roles & 50–950 ramp

primary

#258CB0

secondary

#C7826A

accent

#6B40E8

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258CB0

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

Preview Lab → · Contrast checker → · Palette generator →