#258DA5#258DA5

#258DA5 is a mid, moderate cyan. Relative luminance 0.222; OKLCH L 59.7% C 0.097 H 217.3°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#258DA5
RGB	rgb(37, 141, 165)
HSL	hsl(191, 63%, 40%)
HSV	hsv(191, 78%, 65%)
CMYK	cmyk(77.6%, 14.5%, 0%, 35.3%)
CIE-LAB	lab(54.19, -20.42, -20.97)
CIE-LCH	lch(54.19, 29.27, 225.76°)
OKLab	oklab(59.69% -0.0769 -0.0586)
OKLCH	oklch(59.69% 0.097 217.3)
XYZ	xyz(17.0765, 22.1576, 38.9669)
Luminance	0.2216 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258DA5 #A53D25

analogous

#25A57D #258DA5 #254DA5

triadic

#258DA5 #A5258D #8DA525

tetradic

#258DA5 #7D25A5 #A53D25 #4DA525

square

#258DA5 #7D25A5 #A53D25 #4DA525

split-complementary

#258DA5 #A5254D #A57D25

monochromatic

#0F3841 #1A6273 #258DA5 #35B4D2 #67C7DD

Accessibility & contrast

On white

3.87

#258DA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#258DA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258DA5

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258DA5	#FFFFFF	#000000	##000000
##258DA5	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D89A6

Deuteranopia (green-blind)

#6C7CA5

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #258da5;
/* rgb */ color: rgb(37, 141, 165);
/* oklch */ color: oklch(59.7% 0.097 217.3);

Tailwind

colors: {
  custom: {
    50: '#75aebf',
    500: '#258da5',
    950: '#000000',
  },
}

SCSS

$custom: #258da5;
$custom-light: #75aebf;
$custom-dark: #000000;

JSON

{
  "hex": "#258da5",
  "rgb": {
    "r": 37,
    "g": 141,
    "b": 165
  },
  "hsl": {
    "h": 191.25,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.59693,
    "c": 0.09671,
    "h": 217.3
  },
  "luminance": 0.2216
}

Semantic roles & 50–950 ramp

primary

#258DA5

secondary

#C37563

accent

#6041E6

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258DA5

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

Preview Lab → · Contrast checker → · Palette generator →