#2528AA#2528AA

#2528AA is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.3% C 0.199 H 271.1°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#2528AA
RGB	rgb(37, 40, 170)
HSL	hsl(239, 64%, 41%)
HSV	hsv(239, 78%, 67%)
CMYK	cmyk(78.2%, 76.5%, 0%, 33.3%)
CIE-LAB	lab(26.19, 44.12, -68.67)
CIE-LCH	lch(26.19, 81.62, 302.72°)
OKLab	oklab(38.25% 0.0038 -0.1988)
OKLCH	oklch(38.25% 0.199 271.1)
XYZ	xyz(8.7750, 4.8122, 38.4888)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2528AA #AAA725

analogous

#256AAA #2528AA #6525AA

triadic

#2528AA #AA2528 #28AA25

tetradic

#2528AA #AA256A #AAA725 #25AA65

square

#2528AA #AA256A #AAA725 #25AA65

split-complementary

#2528AA #AA6525 #6AAA25

monochromatic

#0F1045 #1A1C78 #2528AA #383CD4 #6B6DDF

Accessibility & contrast

On white

10.70

#2528AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#2528AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2528AA

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2528AA	#FFFFFF	#000000	##FFFFFF
##2528AA	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045AE

Deuteranopia (green-blind)

#0037A8

Tritanopia (blue-blind)

#004F67

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2528aa;
/* rgb */ color: rgb(37, 40, 170);
/* oklch */ color: oklch(38.3% 0.199 271.1);

Tailwind

colors: {
  custom: {
    50: '#7864c5',
    500: '#2528aa',
    950: '#000000',
  },
}

SCSS

$custom: #2528aa;
$custom-light: #7864c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2528aa",
  "rgb": {
    "r": 37,
    "g": 40,
    "b": 170
  },
  "hsl": {
    "h": 238.647,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.3825,
    "c": 0.19887,
    "h": 271.1
  },
  "luminance": 0.04813
}

Semantic roles & 50–950 ramp

primary

#2528AA

secondary

#C5C366

accent

#E341E7

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0513

muted

#7C7A82

Preview Lab

Preview with #2528AA

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

Preview Lab → · Contrast checker → · Palette generator →