#258CA5#258CA5

#258CA5 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.4% C 0.097 H 218.3°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#258CA5
RGB	rgb(37, 140, 165)
HSL	hsl(192, 63%, 40%)
HSV	hsv(192, 78%, 65%)
CMYK	cmyk(77.6%, 15.2%, 0%, 35.3%)
CIE-LAB	lab(53.88, -19.89, -21.45)
CIE-LCH	lch(53.88, 29.25, 227.16°)
OKLab	oklab(59.44% -0.0759 -0.0599)
OKLCH	oklch(59.44% 0.097 218.3)
XYZ	xyz(16.9297, 21.8640, 38.9179)
Luminance	0.2187 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258CA5 #A53E25

analogous

#25A57E #258CA5 #254CA5

triadic

#258CA5 #A5258C #8CA525

tetradic

#258CA5 #7E25A5 #A53E25 #4CA525

square

#258CA5 #7E25A5 #A53E25 #4CA525

split-complementary

#258CA5 #A5254C #A57E25

monochromatic

#0F3741 #1A6273 #258CA5 #35B3D2 #67C6DD

Accessibility & contrast

On white

3.91

#258CA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#258CA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258CA5

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258CA5	#FFFFFF	#000000	##000000
##258CA5	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C88A6

Deuteranopia (green-blind)

#6B7BA5

Tritanopia (blue-blind)

#009494

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #258ca5;
/* rgb */ color: rgb(37, 140, 165);
/* oklch */ color: oklch(59.4% 0.097 218.3);

Tailwind

colors: {
  custom: {
    50: '#75adbf',
    500: '#258ca5',
    950: '#000000',
  },
}

SCSS

$custom: #258ca5;
$custom-light: #75adbf;
$custom-dark: #000000;

JSON

{
  "hex": "#258ca5",
  "rgb": {
    "r": 37,
    "g": 140,
    "b": 165
  },
  "hsl": {
    "h": 191.719,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.59443,
    "c": 0.09676,
    "h": 218.3
  },
  "luminance": 0.21866
}

Semantic roles & 50–950 ramp

primary

#258CA5

secondary

#C37663

accent

#6241E6

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258CA5

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

Preview Lab → · Contrast checker → · Palette generator →