#2528A6#2528A6

#2528A6 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.8% C 0.194 H 271.3°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#2528A6
RGB	rgb(37, 40, 166)
HSL	hsl(239, 64%, 40%)
HSV	hsv(239, 78%, 65%)
CMYK	cmyk(77.7%, 75.9%, 0%, 34.9%)
CIE-LAB	lab(25.75, 42.77, -66.98)
CIE-LCH	lch(25.75, 79.47, 302.56°)
OKLab	oklab(37.81% 0.0045 -0.1939)
OKLCH	oklch(37.81% 0.194 271.3)
XYZ	xyz(8.4023, 4.6632, 36.5262)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2528A6 #A6A325

analogous

#2568A6 #2528A6 #6325A6

triadic

#2528A6 #A62528 #28A625

tetradic

#2528A6 #A62568 #A6A325 #25A663

square

#2528A6 #A62568 #A6A325 #25A663

split-complementary

#2528A6 #A66325 #68A625

monochromatic

#0F1042 #1A1C74 #2528A6 #363AD2 #686BDD

Accessibility & contrast

On white

10.87

#2528A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2528A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2528A6

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2528A6	#FFFFFF	#000000	##FFFFFF
##2528A6	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AA

Deuteranopia (green-blind)

#0036A4

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2528a6;
/* rgb */ color: rgb(37, 40, 166);
/* oklch */ color: oklch(37.8% 0.194 271.3);

Tailwind

colors: {
  custom: {
    50: '#7764c2',
    500: '#2528a6',
    950: '#000000',
  },
}

SCSS

$custom: #2528a6;
$custom-light: #7764c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2528a6",
  "rgb": {
    "r": 37,
    "g": 40,
    "b": 166
  },
  "hsl": {
    "h": 238.605,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37809,
    "c": 0.19398,
    "h": 271.3
  },
  "luminance": 0.04664
}

Semantic roles & 50–950 ramp

primary

#2528A6

secondary

#C3C164

accent

#E341E7

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #2528A6

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

Preview Lab → · Contrast checker → · Palette generator →