#2528A7#2528A7

#2528A7 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.9% C 0.195 H 271.3°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#2528A7
RGB	rgb(37, 40, 167)
HSL	hsl(239, 64%, 40%)
HSV	hsv(239, 78%, 65%)
CMYK	cmyk(77.8%, 76%, 0%, 34.5%)
CIE-LAB	lab(25.86, 43.11, -67.40)
CIE-LCH	lch(25.86, 80.01, 302.60°)
OKLab	oklab(37.92% 0.0043 -0.1952)
OKLCH	oklch(37.92% 0.195 271.3)
XYZ	xyz(8.4944, 4.7000, 37.0112)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2528A7 #A7A425

analogous

#2569A7 #2528A7 #6325A7

triadic

#2528A7 #A72528 #28A725

tetradic

#2528A7 #A72569 #A7A425 #25A763

square

#2528A7 #A72569 #A7A425 #25A763

split-complementary

#2528A7 #A76325 #69A725

monochromatic

#0F1043 #1A1C75 #2528A7 #373AD3 #696BDE

Accessibility & contrast

On white

10.82

#2528A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2528A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2528A7

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2528A7	#FFFFFF	#000000	##FFFFFF
##2528A7	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AB

Deuteranopia (green-blind)

#0037A5

Tritanopia (blue-blind)

#004E66

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2528a7;
/* rgb */ color: rgb(37, 40, 167);
/* oklch */ color: oklch(37.9% 0.195 271.3);

Tailwind

colors: {
  custom: {
    50: '#7764c2',
    500: '#2528a7',
    950: '#000000',
  },
}

SCSS

$custom: #2528a7;
$custom-light: #7764c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2528a7",
  "rgb": {
    "r": 37,
    "g": 40,
    "b": 167
  },
  "hsl": {
    "h": 238.615,
    "s": 63.725,
    "l": 40
  },
  "oklch": {
    "l": 0.37919,
    "c": 0.19521,
    "h": 271.3
  },
  "luminance": 0.04701
}

Semantic roles & 50–950 ramp

primary

#2528A7

secondary

#C4C164

accent

#E341E7

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #2528A7

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

Preview Lab → · Contrast checker → · Palette generator →