#259DB5#259DB5

#259DB5 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.4% C 0.105 H 215.0°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#259DB5
RGB	rgb(37, 157, 181)
HSL	hsl(190, 66%, 43%)
HSV	hsv(190, 80%, 71%)
CMYK	cmyk(79.6%, 13.3%, 0%, 29%)
CIE-LAB	lab(59.74, -23.46, -21.58)
CIE-LCH	lch(59.74, 31.88, 222.61°)
OKLab	oklab(64.36% -0.0861 -0.0603)
OKLCH	oklch(64.36% 0.105 215)
XYZ	xyz(21.1568, 27.8408, 47.9659)
Luminance	0.2784 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#259DB5 #B53D25

analogous

#25B585 #259DB5 #2555B5

triadic

#259DB5 #B5259D #9DB525

tetradic

#259DB5 #8525B5 #B53D25 #55B525

square

#259DB5 #8525B5 #B53D25 #55B525

split-complementary

#259DB5 #B52555 #B58525

monochromatic

#10454F #1B7182 #259DB5 #3FBED8 #72D0E2

Accessibility & contrast

On white

3.20

#259DB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#259DB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #259DB5

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##259DB5	#FFFFFF	#000000	##000000
##259DB5	1.00	3.20	6.57	6.57
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C98B6

Deuteranopia (green-blind)

#798AB5

Tritanopia (blue-blind)

#00A6A4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #259db5;
/* rgb */ color: rgb(37, 157, 181);
/* oklch */ color: oklch(64.4% 0.105 215.0);

Tailwind

colors: {
  custom: {
    50: '#79bacb',
    500: '#259db5',
    950: '#000000',
  },
}

SCSS

$custom: #259db5;
$custom-light: #79bacb;
$custom-dark: #000000;

JSON

{
  "hex": "#259db5",
  "rgb": {
    "r": 37,
    "g": 157,
    "b": 181
  },
  "hsl": {
    "h": 190,
    "s": 66.055,
    "l": 42.745
  },
  "oklch": {
    "l": 0.64364,
    "c": 0.10514,
    "h": 215
  },
  "luminance": 0.27843
}

Semantic roles & 50–950 ramp

primary

#259DB5

secondary

#C97C6D

accent

#5B3FE9

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #259DB5

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

Preview Lab → · Contrast checker → · Palette generator →