#2539BD#2539BD

#2539BD is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 42.8% C 0.205 H 268.4°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#2539BD
RGB	rgb(37, 57, 189)
HSL	hsl(232, 67%, 44%)
HSV	hsv(232, 80%, 74%)
CMYK	cmyk(80.4%, 69.8%, 0%, 25.9%)
CIE-LAB	lab(31.79, 40.65, -70.75)
CIE-LCH	lch(31.79, 81.59, 299.88°)
OKLab	oklab(42.85% -0.0056 -0.205)
OKLCH	oklch(42.85% 0.205 268.4)
XYZ	xyz(11.4082, 6.9924, 48.8826)
Luminance	0.0699 (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

#2539BD #BDA925

analogous

#2585BD #2539BD #5D25BD

triadic

#2539BD #BD2539 #39BD25

tetradic

#2539BD #BD2585 #BDA925 #25BD5D

square

#2539BD #BD2585 #BDA925 #25BD5D

split-complementary

#2539BD #BD5D25 #85BD25

monochromatic

#111A57 #1B2A8A #2539BD #4558DB #7886E5

Accessibility & contrast

On white

8.75

#2539BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2539BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2539BD

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2539BD	#FFFFFF	#000000	##FFFFFF
##2539BD	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C1

Deuteranopia (green-blind)

#0043BB

Tritanopia (blue-blind)

#005E77

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2539bd;
/* rgb */ color: rgb(37, 57, 189);
/* oklch */ color: oklch(42.8% 0.205 268.4);

Tailwind

colors: {
  custom: {
    50: '#7b70d2',
    500: '#2539bd',
    950: '#000000',
  },
}

SCSS

$custom: #2539bd;
$custom-light: #7b70d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2539bd",
  "rgb": {
    "r": 37,
    "g": 57,
    "b": 189
  },
  "hsl": {
    "h": 232.105,
    "s": 67.257,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42845,
    "c": 0.20504,
    "h": 268.4
  },
  "luminance": 0.06994
}

Semantic roles & 50–950 ramp

primary

#2539BD

secondary

#CCC072

accent

#D33EEA

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #2539BD

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

Preview Lab → · Contrast checker → · Palette generator →