#2528A9#2528A9

#2528A9 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.1% C 0.198 H 271.2°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#2528A9
RGB	rgb(37, 40, 169)
HSL	hsl(239, 64%, 40%)
HSV	hsv(239, 78%, 66%)
CMYK	cmyk(78.1%, 76.3%, 0%, 33.7%)
CIE-LAB	lab(26.08, 43.78, -68.25)
CIE-LCH	lch(26.08, 81.08, 302.68°)
OKLab	oklab(38.14% 0.004 -0.1976)
OKLCH	oklch(38.14% 0.198 271.2)
XYZ	xyz(8.6807, 4.7745, 37.9925)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2528A9 #A9A625

analogous

#256AA9 #2528A9 #6425A9

triadic

#2528A9 #A92528 #28A925

tetradic

#2528A9 #A9256A #A9A625 #25A964

square

#2528A9 #A9256A #A9A625 #25A964

split-complementary

#2528A9 #A96425 #6AA925

monochromatic

#0F1045 #1A1C77 #2528A9 #383BD3 #6A6DDE

Accessibility & contrast

On white

10.74

#2528A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#2528A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2528A9

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2528A9	#FFFFFF	#000000	##FFFFFF
##2528A9	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AD

Deuteranopia (green-blind)

#0037A7

Tritanopia (blue-blind)

#004E67

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2528a9;
/* rgb */ color: rgb(37, 40, 169);
/* oklch */ color: oklch(38.1% 0.198 271.2);

Tailwind

colors: {
  custom: {
    50: '#7764c4',
    500: '#2528a9',
    950: '#000000',
  },
}

SCSS

$custom: #2528a9;
$custom-light: #7764c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2528a9",
  "rgb": {
    "r": 37,
    "g": 40,
    "b": 169
  },
  "hsl": {
    "h": 238.636,
    "s": 64.078,
    "l": 40.392
  },
  "oklch": {
    "l": 0.3814,
    "c": 0.19765,
    "h": 271.2
  },
  "luminance": 0.04775
}

Semantic roles & 50–950 ramp

primary

#2528A9

secondary

#C4C265

accent

#E341E7

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #2528A9

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

Preview Lab → · Contrast checker → · Palette generator →