#2559BA#2559BA

#2559BA is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.7% C 0.163 H 261.4°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#2559BA
RGB	rgb(37, 89, 186)
HSL	hsl(219, 67%, 44%)
HSV	hsv(219, 80%, 73%)
CMYK	cmyk(80.1%, 52.2%, 0%, 27.1%)
CIE-LAB	lab(39.72, 18.73, -56.03)
CIE-LCH	lch(39.72, 59.08, 288.49°)
OKLab	oklab(48.67% -0.0243 -0.1614)
OKLCH	oklch(48.67% 0.163 261.4)
XYZ	xyz(13.1951, 11.0817, 47.8884)
Luminance	0.1108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2559BA #BA8625

analogous

#25A3BA #2559BA #3B25BA

triadic

#2559BA #BA2559 #59BA25

tetradic

#2559BA #BA25A3 #BA8625 #25BA3B

square

#2559BA #BA25A3 #BA8625 #25BA3B

split-complementary

#2559BA #BA3B25 #A3BA25

monochromatic

#112854 #1B4187 #2559BA #4377DA #769CE4

Accessibility & contrast

On white

6.53

#2559BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#2559BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2559BA

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2559BA	#FFFFFF	#000000	##FFFFFF
##2559BA	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1565BD

Deuteranopia (green-blind)

#0057B8

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2559ba;
/* rgb */ color: rgb(37, 89, 186);
/* oklch */ color: oklch(48.7% 0.163 261.4);

Tailwind

colors: {
  custom: {
    50: '#7887cf',
    500: '#2559ba',
    950: '#000000',
  },
}

SCSS

$custom: #2559ba;
$custom-light: #7887cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2559ba",
  "rgb": {
    "r": 37,
    "g": 89,
    "b": 186
  },
  "hsl": {
    "h": 219.06,
    "s": 66.816,
    "l": 43.725
  },
  "oklch": {
    "l": 0.48667,
    "c": 0.16326,
    "h": 261.4
  },
  "luminance": 0.11083
}

Semantic roles & 50–950 ramp

primary

#2559BA

secondary

#CBAB70

accent

#AE3EEA

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2559BA

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

Preview Lab → · Contrast checker → · Palette generator →