#259AB9#259AB9

#259AB9 is a light, moderate cyan. Relative luminance 0.270; OKLCH L 63.8% C 0.108 H 220.6°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#259AB9
RGB	rgb(37, 154, 185)
HSL	hsl(193, 67%, 44%)
HSV	hsv(193, 80%, 73%)
CMYK	cmyk(80%, 16.8%, 0%, 27.5%)
CIE-LAB	lab(58.98, -20.57, -25.02)
CIE-LCH	lch(58.98, 32.39, 230.57°)
OKLab	oklab(63.8% -0.0817 -0.0701)
OKLCH	oklch(63.8% 0.108 220.6)
XYZ	xyz(21.0718, 27.0047, 49.9914)
Luminance	0.2701 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#259AB9 #B94425

analogous

#25B98E #259AB9 #2550B9

triadic

#259AB9 #B9259A #9AB925

tetradic

#259AB9 #8E25B9 #B94425 #50B925

square

#259AB9 #8E25B9 #B94425 #50B925

split-complementary

#259AB9 #B92550 #B98E25

monochromatic

#114553 #1B7086 #259AB9 #42BAD9 #75CCE3

Accessibility & contrast

On white

3.28

#259AB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#259AB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #259AB9

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##259AB9	#FFFFFF	#000000	##000000
##259AB9	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8796BB

Deuteranopia (green-blind)

#7488B9

Tritanopia (blue-blind)

#00A4A4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #259ab9;
/* rgb */ color: rgb(37, 154, 185);
/* oklch */ color: oklch(63.8% 0.108 220.6);

Tailwind

colors: {
  custom: {
    50: '#79b8ce',
    500: '#259ab9',
    950: '#000000',
  },
}

SCSS

$custom: #259ab9;
$custom-light: #79b8ce;
$custom-dark: #000000;

JSON

{
  "hex": "#259ab9",
  "rgb": {
    "r": 37,
    "g": 154,
    "b": 185
  },
  "hsl": {
    "h": 192.568,
    "s": 66.667,
    "l": 43.529
  },
  "oklch": {
    "l": 0.63798,
    "c": 0.1076,
    "h": 220.6
  },
  "luminance": 0.27007
}

Semantic roles & 50–950 ramp

primary

#259AB9

secondary

#CB826F

accent

#623EEA

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #259AB9

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

Preview Lab → · Contrast checker → · Palette generator →