#259FB9#259FB9

#259FB9 is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.0% C 0.107 H 216.2°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#259FB9
RGB	rgb(37, 159, 185)
HSL	hsl(191, 67%, 44%)
HSV	hsv(191, 80%, 73%)
CMYK	cmyk(80%, 14.1%, 0%, 27.5%)
CIE-LAB	lab(60.51, -23.17, -22.67)
CIE-LCH	lch(60.51, 32.42, 224.37°)
OKLab	oklab(65.03% -0.0865 -0.0633)
OKLCH	oklch(65.03% 0.107 216.2)
XYZ	xyz(21.9143, 28.6896, 50.2722)
Luminance	0.2869 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#259FB9 #B93F25

analogous

#25B989 #259FB9 #2555B9

triadic

#259FB9 #B9259F #9FB925

tetradic

#259FB9 #8925B9 #B93F25 #55B925

square

#259FB9 #8925B9 #B93F25 #55B925

split-complementary

#259FB9 #B92555 #B98925

monochromatic

#114753 #1B7386 #259FB9 #42BFD9 #75D0E3

Accessibility & contrast

On white

3.12

#259FB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#259FB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #259FB9

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##259FB9	#FFFFFF	#000000	##000000
##259FB9	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D9ABA

Deuteranopia (green-blind)

#7A8CB9

Tritanopia (blue-blind)

#00A8A7

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #259fb9;
/* rgb */ color: rgb(37, 159, 185);
/* oklch */ color: oklch(65.0% 0.107 216.2);

Tailwind

colors: {
  custom: {
    50: '#79bbce',
    500: '#259fb9',
    950: '#000000',
  },
}

SCSS

$custom: #259fb9;
$custom-light: #79bbce;
$custom-dark: #000000;

JSON

{
  "hex": "#259fb9",
  "rgb": {
    "r": 37,
    "g": 159,
    "b": 185
  },
  "hsl": {
    "h": 190.541,
    "s": 66.667,
    "l": 43.529
  },
  "oklch": {
    "l": 0.65028,
    "c": 0.10718,
    "h": 216.2
  },
  "luminance": 0.28692
}

Semantic roles & 50–950 ramp

primary

#259FB9

secondary

#CB7F6F

accent

#5C3EEA

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #259FB9

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

Preview Lab → · Contrast checker → · Palette generator →