#259CB5#259CB5

#259CB5 is a light, moderate cyan. Relative luminance 0.275; OKLCH L 64.1% C 0.105 H 215.9°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#259CB5
RGB	rgb(37, 156, 181)
HSL	hsl(190, 66%, 43%)
HSV	hsv(190, 80%, 71%)
CMYK	cmyk(79.6%, 13.8%, 0%, 29%)
CIE-LAB	lab(59.44, -22.95, -22.05)
CIE-LCH	lch(59.44, 31.83, 223.86°)
OKLab	oklab(64.12% -0.0852 -0.0616)
OKLCH	oklch(64.12% 0.105 215.9)
XYZ	xyz(20.9883, 27.5038, 47.9097)
Luminance	0.2751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#259CB5 #B53E25

analogous

#25B586 #259CB5 #2554B5

triadic

#259CB5 #B5259C #9CB525

tetradic

#259CB5 #8625B5 #B53E25 #54B525

square

#259CB5 #8625B5 #B53E25 #54B525

split-complementary

#259CB5 #B52554 #B58625

monochromatic

#10444F #1B7082 #259CB5 #3FBDD8 #72CFE2

Accessibility & contrast

On white

3.23

#259CB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#259CB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #259CB5

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##259CB5	#FFFFFF	#000000	##000000
##259CB5	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B97B6

Deuteranopia (green-blind)

#7889B5

Tritanopia (blue-blind)

#00A5A4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #259cb5;
/* rgb */ color: rgb(37, 156, 181);
/* oklch */ color: oklch(64.1% 0.105 215.9);

Tailwind

colors: {
  custom: {
    50: '#78b9cb',
    500: '#259cb5',
    950: '#000000',
  },
}

SCSS

$custom: #259cb5;
$custom-light: #78b9cb;
$custom-dark: #000000;

JSON

{
  "hex": "#259cb5",
  "rgb": {
    "r": 37,
    "g": 156,
    "b": 181
  },
  "hsl": {
    "h": 190.417,
    "s": 66.055,
    "l": 42.745
  },
  "oklch": {
    "l": 0.64117,
    "c": 0.10513,
    "h": 215.9
  },
  "luminance": 0.27506
}

Semantic roles & 50–950 ramp

primary

#259CB5

secondary

#C97D6D

accent

#5C3FE9

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #259CB5

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

Preview Lab → · Contrast checker → · Palette generator →