#258FB2#258FB2

#258FB2 is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 60.8% C 0.105 H 225.4°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#258FB2
RGB	rgb(37, 143, 178)
HSL	hsl(195, 66%, 42%)
HSV	hsv(195, 79%, 70%)
CMYK	cmyk(79.2%, 19.7%, 0%, 30.2%)
CIE-LAB	lab(55.33, -17.07, -26.67)
CIE-LCH	lch(55.33, 31.67, 237.38°)
OKLab	oklab(60.78% -0.0738 -0.0749)
OKLCH	oklch(60.78% 0.105 225.4)
XYZ	xyz(18.6180, 23.2503, 45.6174)
Luminance	0.2325 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258FB2 #B24825

analogous

#25B28F #258FB2 #2548B2

triadic

#258FB2 #B2258F #8FB225

tetradic

#258FB2 #8F25B2 #B24825 #48B225

square

#258FB2 #8F25B2 #B24825 #48B225

split-complementary

#258FB2 #B22548 #B28F25

monochromatic

#103E4D #1A667F #258FB2 #3DB1D7 #70C5E1

Accessibility & contrast

On white

3.72

#258FB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#258FB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258FB2

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258FB2	#FFFFFF	#000000	##000000
##258FB2	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8CB4

Deuteranopia (green-blind)

#697FB2

Tritanopia (blue-blind)

#00999A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #258fb2;
/* rgb */ color: rgb(37, 143, 178);
/* oklch */ color: oklch(60.8% 0.105 225.4);

Tailwind

colors: {
  custom: {
    50: '#77b0c9',
    500: '#258fb2',
    950: '#000000',
  },
}

SCSS

$custom: #258fb2;
$custom-light: #77b0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#258fb2",
  "rgb": {
    "r": 37,
    "g": 143,
    "b": 178
  },
  "hsl": {
    "h": 194.894,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.60776,
    "c": 0.10511,
    "h": 225.4
  },
  "luminance": 0.23253
}

Semantic roles & 50–950 ramp

primary

#258FB2

secondary

#C8826B

accent

#693FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258FB2

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

Preview Lab → · Contrast checker → · Palette generator →