#2559A3#2559A3

#2559A3 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.0% C 0.132 H 257.8°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#2559A3
RGB	rgb(37, 89, 163)
HSL	hsl(215, 63%, 39%)
HSV	hsv(215, 77%, 64%)
CMYK	cmyk(77.3%, 45.4%, 0%, 36.1%)
CIE-LAB	lab(38.17, 9.77, -44.95)
CIE-LCH	lch(38.17, 46.00, 282.27°)
OKLab	oklab(46.98% -0.0278 -0.1288)
OKLCH	oklch(46.98% 0.132 257.8)
XYZ	xyz(10.9438, 10.1812, 36.0316)
Luminance	0.1018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2559A3 #A36F25

analogous

#2598A3 #2559A3 #3025A3

triadic

#2559A3 #A32559 #59A325

tetradic

#2559A3 #A32598 #A36F25 #25A330

square

#2559A3 #A32598 #A36F25 #25A330

split-complementary

#2559A3 #A33025 #98A325

monochromatic

#0E233F #1A3E71 #2559A3 #3475D1 #6697DC

Accessibility & contrast

On white

6.92

#2559A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#2559A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2559A3

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2559A3	#FFFFFF	#000000	##FFFFFF
##2559A3	1.00	6.92	3.04	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3360A6

Deuteranopia (green-blind)

#1854A2

Tritanopia (blue-blind)

#006B76

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2559a3;
/* rgb */ color: rgb(37, 89, 163);
/* oklch */ color: oklch(47.0% 0.132 257.8);

Tailwind

colors: {
  custom: {
    50: '#7287bf',
    500: '#2559a3',
    950: '#000000',
  },
}

SCSS

$custom: #2559a3;
$custom-light: #7287bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2559a3",
  "rgb": {
    "r": 37,
    "g": 89,
    "b": 163
  },
  "hsl": {
    "h": 215.238,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.4698,
    "c": 0.1318,
    "h": 257.8
  },
  "luminance": 0.10182
}

Semantic roles & 50–950 ramp

primary

#2559A3

secondary

#C29A62

accent

#A242E6

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2559A3

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

Preview Lab → · Contrast checker → · Palette generator →