#258EB2#258EB2

#258EB2 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.5% C 0.105 H 226.3°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#258EB2
RGB	rgb(37, 142, 178)
HSL	hsl(195, 66%, 42%)
HSV	hsv(195, 79%, 70%)
CMYK	cmyk(79.2%, 20.2%, 0%, 30.2%)
CIE-LAB	lab(55.02, -16.53, -27.15)
CIE-LCH	lch(55.02, 31.78, 238.66°)
OKLab	oklab(60.53% -0.0728 -0.0762)
OKLCH	oklch(60.53% 0.105 226.3)
XYZ	xyz(18.4685, 22.9514, 45.5675)
Luminance	0.2295 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258EB2 #B24925

analogous

#25B28F #258EB2 #2548B2

triadic

#258EB2 #B2258E #8EB225

tetradic

#258EB2 #8F25B2 #B24925 #48B225

square

#258EB2 #8F25B2 #B24925 #48B225

split-complementary

#258EB2 #B22548 #B28F25

monochromatic

#103D4D #1A667F #258EB2 #3DB0D7 #70C4E1

Accessibility & contrast

On white

3.76

#258EB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#258EB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258EB2

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258EB2	#FFFFFF	#000000	##000000
##258EB2	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8BB4

Deuteranopia (green-blind)

#687EB2

Tritanopia (blue-blind)

#00989A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #258eb2;
/* rgb */ color: rgb(37, 142, 178);
/* oklch */ color: oklch(60.5% 0.105 226.3);

Tailwind

colors: {
  custom: {
    50: '#77afc9',
    500: '#258eb2',
    950: '#000000',
  },
}

SCSS

$custom: #258eb2;
$custom-light: #77afc9;
$custom-dark: #000000;

JSON

{
  "hex": "#258eb2",
  "rgb": {
    "r": 37,
    "g": 142,
    "b": 178
  },
  "hsl": {
    "h": 195.319,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.6053,
    "c": 0.10542,
    "h": 226.3
  },
  "luminance": 0.22954
}

Semantic roles & 50–950 ramp

primary

#258EB2

secondary

#C8836B

accent

#6A3FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258EB2

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

Preview Lab → · Contrast checker → · Palette generator →