#2531BD#2531BD

#2531BD is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 41.6% C 0.213 H 269.3°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#2531BD
RGB	rgb(37, 49, 189)
HSL	hsl(235, 67%, 44%)
HSV	hsv(235, 80%, 74%)
CMYK	cmyk(80.4%, 74.1%, 0%, 25.9%)
CIE-LAB	lab(30.07, 45.42, -73.59)
CIE-LCH	lch(30.07, 86.48, 301.68°)
OKLab	oklab(41.61% -0.0025 -0.2132)
OKLCH	oklch(41.61% 0.213 269.3)
XYZ	xyz(11.0434, 6.2628, 48.7610)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2531BD #BDB125

analogous

#257DBD #2531BD #6525BD

triadic

#2531BD #BD2531 #31BD25

tetradic

#2531BD #BD257D #BDB125 #25BD65

square

#2531BD #BD257D #BDB125 #25BD65

split-complementary

#2531BD #BD6525 #7DBD25

monochromatic

#111657 #1B248A #2531BD #4551DB #7880E5

Accessibility & contrast

On white

9.32

#2531BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#2531BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2531BD

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2531BD	#FFFFFF	#000000	##FFFFFF
##2531BD	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EC1

Deuteranopia (green-blind)

#003FBB

Tritanopia (blue-blind)

#005A74

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2531bd;
/* rgb */ color: rgb(37, 49, 189);
/* oklch */ color: oklch(41.6% 0.213 269.3);

Tailwind

colors: {
  custom: {
    50: '#7c6ad2',
    500: '#2531bd',
    950: '#000000',
  },
}

SCSS

$custom: #2531bd;
$custom-light: #7c6ad2;
$custom-dark: #000000;

JSON

{
  "hex": "#2531bd",
  "rgb": {
    "r": 37,
    "g": 49,
    "b": 189
  },
  "hsl": {
    "h": 235.263,
    "s": 67.257,
    "l": 44.314
  },
  "oklch": {
    "l": 0.41608,
    "c": 0.21322,
    "h": 269.3
  },
  "luminance": 0.06264
}

Semantic roles & 50–950 ramp

primary

#2531BD

secondary

#CCC572

accent

#DD3EEA

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #2531BD

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

Preview Lab → · Contrast checker → · Palette generator →