#258EA5#258EA5

#258EA5 is a mid, moderate cyan. Relative luminance 0.225; OKLCH L 59.9% C 0.097 H 216.3°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#258EA5
RGB	rgb(37, 142, 165)
HSL	hsl(191, 63%, 40%)
HSV	hsv(191, 78%, 65%)
CMYK	cmyk(77.6%, 13.9%, 0%, 35.3%)
CIE-LAB	lab(54.51, -20.95, -20.49)
CIE-LCH	lch(54.51, 29.31, 224.37°)
OKLab	oklab(59.94% -0.0779 -0.0572)
OKLCH	oklch(59.94% 0.097 216.3)
XYZ	xyz(17.2246, 22.4538, 39.0162)
Luminance	0.2246 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258EA5 #A53C25

analogous

#25A57C #258EA5 #254EA5

triadic

#258EA5 #A5258E #8EA525

tetradic

#258EA5 #7C25A5 #A53C25 #4EA525

square

#258EA5 #7C25A5 #A53C25 #4EA525

split-complementary

#258EA5 #A5254E #A57C25

monochromatic

#0F3841 #1A6373 #258EA5 #35B6D2 #67C8DD

Accessibility & contrast

On white

3.82

#258EA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#258EA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258EA5

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258EA5	#FFFFFF	#000000	##000000
##258EA5	1.00	3.82	5.49	5.49
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F89A6

Deuteranopia (green-blind)

#6D7DA5

Tritanopia (blue-blind)

#009695

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #258ea5;
/* rgb */ color: rgb(37, 142, 165);
/* oklch */ color: oklch(59.9% 0.097 216.3);

Tailwind

colors: {
  custom: {
    50: '#75afbf',
    500: '#258ea5',
    950: '#000000',
  },
}

SCSS

$custom: #258ea5;
$custom-light: #75afbf;
$custom-dark: #000000;

JSON

{
  "hex": "#258ea5",
  "rgb": {
    "r": 37,
    "g": 142,
    "b": 165
  },
  "hsl": {
    "h": 190.781,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.59944,
    "c": 0.0967,
    "h": 216.3
  },
  "luminance": 0.22456
}

Semantic roles & 50–950 ramp

primary

#258EA5

secondary

#C37463

accent

#5F41E6

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258EA5

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

Preview Lab → · Contrast checker → · Palette generator →