#259DBB#259DBB

#259DBB is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.6% C 0.108 H 219.4°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#259DBB
RGB	rgb(37, 157, 187)
HSL	hsl(192, 67%, 44%)
HSV	hsv(192, 80%, 73%)
CMYK	cmyk(80.2%, 16%, 0%, 26.7%)
CIE-LAB	lab(59.97, -21.47, -24.62)
CIE-LCH	lch(59.97, 32.67, 228.91°)
OKLab	oklab(64.62% -0.0837 -0.0689)
OKLCH	oklch(64.62% 0.108 219.4)
XYZ	xyz(21.7858, 28.0924, 51.2782)
Luminance	0.2809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#259DBB #BB4325

analogous

#25BB8E #259DBB #2552BB

triadic

#259DBB #BB259D #9DBB25

tetradic

#259DBB #8E25BB #BB4325 #52BB25

square

#259DBB #8E25BB #BB4325 #52BB25

split-complementary

#259DBB #BB2552 #BB8E25

monochromatic

#114755 #1B7288 #259DBB #43BCDA #76CEE4

Accessibility & contrast

On white

3.17

#259DBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#259DBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #259DBB

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##259DBB	#FFFFFF	#000000	##000000
##259DBB	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A99BD

Deuteranopia (green-blind)

#778ABB

Tritanopia (blue-blind)

#00A7A7

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #259dbb;
/* rgb */ color: rgb(37, 157, 187);
/* oklch */ color: oklch(64.6% 0.108 219.4);

Tailwind

colors: {
  custom: {
    50: '#79bacf',
    500: '#259dbb',
    950: '#000000',
  },
}

SCSS

$custom: #259dbb;
$custom-light: #79bacf;
$custom-dark: #000000;

JSON

{
  "hex": "#259dbb",
  "rgb": {
    "r": 37,
    "g": 157,
    "b": 187
  },
  "hsl": {
    "h": 192,
    "s": 66.964,
    "l": 43.922
  },
  "oklch": {
    "l": 0.64622,
    "c": 0.10845,
    "h": 219.4
  },
  "luminance": 0.28095
}

Semantic roles & 50–950 ramp

primary

#259DBB

secondary

#CB8370

accent

#603EEA

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #259DBB

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

Preview Lab → · Contrast checker → · Palette generator →