#258AA4#258AA4

#258AA4 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 58.9% C 0.096 H 219.5°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#258AA4
RGB	rgb(37, 138, 164)
HSL	hsl(192, 63%, 39%)
HSV	hsv(192, 77%, 64%)
CMYK	cmyk(77.4%, 15.9%, 0%, 35.7%)
CIE-LAB	lab(53.22, -19.16, -21.89)
CIE-LCH	lch(53.22, 29.09, 228.80°)
OKLab	oklab(58.9% -0.0744 -0.0612)
OKLCH	oklch(58.9% 0.096 219.5)
XYZ	xyz(16.5494, 21.2486, 38.3439)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258AA4 #A43F25

analogous

#25A47E #258AA4 #254BA4

triadic

#258AA4 #A4258A #8AA425

tetradic

#258AA4 #7E25A4 #A43F25 #4BA425

square

#258AA4 #7E25A4 #A43F25 #4BA425

split-complementary

#258AA4 #A4254B #A47E25

monochromatic

#0E3640 #1A6072 #258AA4 #35B1D1 #67C5DD

Accessibility & contrast

On white

4.00

#258AA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#258AA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258AA4

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258AA4	#FFFFFF	#000000	##000000
##258AA4	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A86A5

Deuteranopia (green-blind)

#697AA4

Tritanopia (blue-blind)

#009392

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #258aa4;
/* rgb */ color: rgb(37, 138, 164);
/* oklch */ color: oklch(58.9% 0.096 219.5);

Tailwind

colors: {
  custom: {
    50: '#74acbf',
    500: '#258aa4',
    950: '#000000',
  },
}

SCSS

$custom: #258aa4;
$custom-light: #74acbf;
$custom-dark: #000000;

JSON

{
  "hex": "#258aa4",
  "rgb": {
    "r": 37,
    "g": 138,
    "b": 164
  },
  "hsl": {
    "h": 192.283,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.58897,
    "c": 0.09631,
    "h": 219.5
  },
  "luminance": 0.21251
}

Semantic roles & 50–950 ramp

primary

#258AA4

secondary

#C27662

accent

#6342E6

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258AA4

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

Preview Lab → · Contrast checker → · Palette generator →