#258FB3#258FB3

#258FB3 is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 60.8% C 0.106 H 226.1°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#258FB3
RGB	rgb(37, 143, 179)
HSL	hsl(195, 66%, 42%)
HSV	hsv(195, 79%, 70%)
CMYK	cmyk(79.3%, 20.1%, 0%, 29.8%)
CIE-LAB	lab(55.37, -16.73, -27.18)
CIE-LCH	lch(55.37, 31.91, 238.39°)
OKLab	oklab(60.82% -0.0734 -0.0763)
OKLCH	oklch(60.82% 0.106 226.1)
XYZ	xyz(18.7187, 23.2906, 46.1481)
Luminance	0.2329 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258FB3 #B34925

analogous

#25B390 #258FB3 #2548B3

triadic

#258FB3 #B3258F #8FB325

tetradic

#258FB3 #9025B3 #B34925 #48B325

square

#258FB3 #9025B3 #B34925 #48B325

split-complementary

#258FB3 #B32548 #B39025

monochromatic

#103E4E #1B6680 #258FB3 #3EB0D7 #71C5E2

Accessibility & contrast

On white

3.71

#258FB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#258FB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258FB3

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258FB3	#FFFFFF	#000000	##000000
##258FB3	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB5

Deuteranopia (green-blind)

#697FB3

Tritanopia (blue-blind)

#00999B

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #258fb3;
/* rgb */ color: rgb(37, 143, 179);
/* oklch */ color: oklch(60.8% 0.106 226.1);

Tailwind

colors: {
  custom: {
    50: '#77afca',
    500: '#258fb3',
    950: '#000000',
  },
}

SCSS

$custom: #258fb3;
$custom-light: #77afca;
$custom-dark: #000000;

JSON

{
  "hex": "#258fb3",
  "rgb": {
    "r": 37,
    "g": 143,
    "b": 179
  },
  "hsl": {
    "h": 195.211,
    "s": 65.741,
    "l": 42.353
  },
  "oklch": {
    "l": 0.60823,
    "c": 0.10588,
    "h": 226.1
  },
  "luminance": 0.23293
}

Semantic roles & 50–950 ramp

primary

#258FB3

secondary

#C8836B

accent

#6A3FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258FB3

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

Preview Lab → · Contrast checker → · Palette generator →