#258FA5#258FA5

#258FA5 is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.2% C 0.097 H 215.3°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#258FA5
RGB	rgb(37, 143, 165)
HSL	hsl(190, 63%, 40%)
HSV	hsv(190, 78%, 65%)
CMYK	cmyk(77.6%, 13.3%, 0%, 35.3%)
CIE-LAB	lab(54.82, -21.48, -20.02)
CIE-LCH	lch(54.82, 29.36, 222.98°)
OKLab	oklab(60.2% -0.079 -0.0559)
OKLCH	oklch(60.2% 0.097 215.3)
XYZ	xyz(17.3740, 22.7527, 39.0660)
Luminance	0.2276 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258FA5 #A53B25

analogous

#25A57B #258FA5 #254FA5

triadic

#258FA5 #A5258F #8FA525

tetradic

#258FA5 #7B25A5 #A53B25 #4FA525

square

#258FA5 #7B25A5 #A53B25 #4FA525

split-complementary

#258FA5 #A5254F #A57B25

monochromatic

#0F3841 #1A6473 #258FA5 #35B7D2 #67C9DD

Accessibility & contrast

On white

3.78

#258FA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#258FA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258FA5

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258FA5	#FFFFFF	#000000	##000000
##258FA5	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808AA6

Deuteranopia (green-blind)

#6E7EA5

Tritanopia (blue-blind)

#009796

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #258fa5;
/* rgb */ color: rgb(37, 143, 165);
/* oklch */ color: oklch(60.2% 0.097 215.3);

Tailwind

colors: {
  custom: {
    50: '#75b0bf',
    500: '#258fa5',
    950: '#000000',
  },
}

SCSS

$custom: #258fa5;
$custom-light: #75b0bf;
$custom-dark: #000000;

JSON

{
  "hex": "#258fa5",
  "rgb": {
    "r": 37,
    "g": 143,
    "b": 165
  },
  "hsl": {
    "h": 190.313,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.60195,
    "c": 0.09672,
    "h": 215.3
  },
  "luminance": 0.22755
}

Semantic roles & 50–950 ramp

primary

#258FA5

secondary

#C37363

accent

#5E41E6

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258FA5

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

Preview Lab → · Contrast checker → · Palette generator →