#2528A1#2528A1

#2528A1 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.3% C 0.188 H 271.6°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#2528A1
RGB	rgb(37, 40, 161)
HSL	hsl(239, 63%, 39%)
HSV	hsv(239, 77%, 63%)
CMYK	cmyk(77%, 75.2%, 0%, 36.9%)
CIE-LAB	lab(25.21, 41.07, -64.85)
CIE-LCH	lch(25.21, 76.76, 302.35°)
OKLab	oklab(37.26% 0.0054 -0.1877)
OKLCH	oklch(37.26% 0.188 271.6)
XYZ	xyz(7.9526, 4.4832, 34.1575)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2528A1 #A19E25

analogous

#2566A1 #2528A1 #6025A1

triadic

#2528A1 #A12528 #28A125

tetradic

#2528A1 #A12566 #A19E25 #25A160

square

#2528A1 #A12566 #A19E25 #25A160

split-complementary

#2528A1 #A16025 #66A125

monochromatic

#0E0F3D #1A1C6F #2528A1 #3337D0 #6568DC

Accessibility & contrast

On white

11.07

#2528A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#2528A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2528A1

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2528A1	#FFFFFF	#000000	##FFFFFF
##2528A1	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A5

Deuteranopia (green-blind)

#00369F

Tritanopia (blue-blind)

#004B62

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2528a1;
/* rgb */ color: rgb(37, 40, 161);
/* oklch */ color: oklch(37.3% 0.188 271.6);

Tailwind

colors: {
  custom: {
    50: '#7563be',
    500: '#2528a1',
    950: '#000000',
  },
}

SCSS

$custom: #2528a1;
$custom-light: #7563be;
$custom-dark: #000000;

JSON

{
  "hex": "#2528a1",
  "rgb": {
    "r": 37,
    "g": 40,
    "b": 161
  },
  "hsl": {
    "h": 238.548,
    "s": 62.626,
    "l": 38.824
  },
  "oklch": {
    "l": 0.37262,
    "c": 0.18781,
    "h": 271.6
  },
  "luminance": 0.04484
}

Semantic roles & 50–950 ramp

primary

#2528A1

secondary

#C1BF61

accent

#E242E6

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2528A1

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

Preview Lab → · Contrast checker → · Palette generator →