#259DB9#259DB9

#259DB9 is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.5% C 0.107 H 218.0°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#259DB9
RGB	rgb(37, 157, 185)
HSL	hsl(191, 67%, 44%)
HSV	hsv(191, 80%, 73%)
CMYK	cmyk(80%, 15.1%, 0%, 27.5%)
CIE-LAB	lab(59.90, -22.14, -23.61)
CIE-LCH	lch(59.90, 32.37, 226.84°)
OKLab	oklab(64.54% -0.0845 -0.066)
OKLCH	oklch(64.54% 0.107 218)
XYZ	xyz(21.5731, 28.0073, 50.1585)
Luminance	0.2801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#259DB9 #B94125

analogous

#25B98B #259DB9 #2553B9

triadic

#259DB9 #B9259D #9DB925

tetradic

#259DB9 #8B25B9 #B94125 #53B925

square

#259DB9 #8B25B9 #B94125 #53B925

split-complementary

#259DB9 #B92553 #B98B25

monochromatic

#114653 #1B7286 #259DB9 #42BDD9 #75CFE3

Accessibility & contrast

On white

3.18

#259DB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#259DB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #259DB9

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##259DB9	#FFFFFF	#000000	##000000
##259DB9	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B98BB

Deuteranopia (green-blind)

#788AB9

Tritanopia (blue-blind)

#00A7A6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #259db9;
/* rgb */ color: rgb(37, 157, 185);
/* oklch */ color: oklch(64.5% 0.107 218.0);

Tailwind

colors: {
  custom: {
    50: '#79bace',
    500: '#259db9',
    950: '#000000',
  },
}

SCSS

$custom: #259db9;
$custom-light: #79bace;
$custom-dark: #000000;

JSON

{
  "hex": "#259db9",
  "rgb": {
    "r": 37,
    "g": 157,
    "b": 185
  },
  "hsl": {
    "h": 191.351,
    "s": 66.667,
    "l": 43.529
  },
  "oklch": {
    "l": 0.64535,
    "c": 0.10726,
    "h": 218
  },
  "luminance": 0.2801
}

Semantic roles & 50–950 ramp

primary

#259DB9

secondary

#CB806F

accent

#5F3EEA

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #259DB9

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

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