#258FA6#258FA6

#258FA6 is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.2% C 0.097 H 216.1°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#258FA6
RGB	rgb(37, 143, 166)
HSL	hsl(191, 64%, 40%)
HSV	hsv(191, 78%, 65%)
CMYK	cmyk(77.7%, 13.9%, 0%, 34.9%)
CIE-LAB	lab(54.85, -21.15, -20.53)
CIE-LCH	lch(54.85, 29.48, 224.16°)
OKLab	oklab(60.24% -0.0785 -0.0573)
OKLCH	oklch(60.24% 0.097 216.1)
XYZ	xyz(17.4654, 22.7893, 39.5473)
Luminance	0.2279 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258FA6 #A63C25

analogous

#25A67D #258FA6 #254EA6

triadic

#258FA6 #A6258F #8FA625

tetradic

#258FA6 #7D25A6 #A63C25 #4EA625

square

#258FA6 #7D25A6 #A63C25 #4EA625

split-complementary

#258FA6 #A6254E #A67D25

monochromatic

#0F3942 #1A6474 #258FA6 #36B6D2 #68C8DD

Accessibility & contrast

On white

3.78

#258FA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#258FA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258FA6

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258FA6	#FFFFFF	#000000	##000000
##258FA6	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8AA7

Deuteranopia (green-blind)

#6E7EA6

Tritanopia (blue-blind)

#009796

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #258fa6;
/* rgb */ color: rgb(37, 143, 166);
/* oklch */ color: oklch(60.2% 0.097 216.1);

Tailwind

colors: {
  custom: {
    50: '#75b0c0',
    500: '#258fa6',
    950: '#000000',
  },
}

SCSS

$custom: #258fa6;
$custom-light: #75b0c0;
$custom-dark: #000000;

JSON

{
  "hex": "#258fa6",
  "rgb": {
    "r": 37,
    "g": 143,
    "b": 166
  },
  "hsl": {
    "h": 190.698,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.60238,
    "c": 0.09723,
    "h": 216.1
  },
  "luminance": 0.22791
}

Semantic roles & 50–950 ramp

primary

#258FA6

secondary

#C37564

accent

#5F41E7

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258FA6

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

Preview Lab → · Contrast checker → · Palette generator →