#2428A5#2428A5

#2428A5 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.6% C 0.193 H 271.1°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#2428A5
RGB	rgb(36, 40, 165)
HSL	hsl(238, 64%, 39%)
HSV	hsv(238, 78%, 65%)
CMYK	cmyk(78.2%, 75.8%, 0%, 35.3%)
CIE-LAB	lab(25.59, 42.35, -66.65)
CIE-LCH	lch(25.59, 78.96, 302.43°)
OKLab	oklab(37.65% 0.0036 -0.193)
OKLCH	oklch(37.65% 0.193 271.1)
XYZ	xyz(8.2756, 4.6084, 36.0434)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2428A5 #A5A124

analogous

#2468A5 #2428A5 #6124A5

triadic

#2428A5 #A52428 #28A524

tetradic

#2428A5 #A52468 #A5A124 #24A561

square

#2428A5 #A52468 #A5A124 #24A561

split-complementary

#2428A5 #A56124 #68A524

monochromatic

#0E1041 #191C73 #2428A5 #3439D3 #666ADE

Accessibility & contrast

On white

10.93

#2428A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#2428A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2428A5

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2428A5	#FFFFFF	#000000	##FFFFFF
##2428A5	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A9

Deuteranopia (green-blind)

#0036A3

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2428a5;
/* rgb */ color: rgb(36, 40, 165);
/* oklch */ color: oklch(37.6% 0.193 271.1);

Tailwind

colors: {
  custom: {
    50: '#7664c1',
    500: '#2428a5',
    950: '#000000',
  },
}

SCSS

$custom: #2428a5;
$custom-light: #7664c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2428a5",
  "rgb": {
    "r": 36,
    "g": 40,
    "b": 165
  },
  "hsl": {
    "h": 238.14,
    "s": 64.179,
    "l": 39.412
  },
  "oklch": {
    "l": 0.37645,
    "c": 0.19301,
    "h": 271.1
  },
  "luminance": 0.04609
}

Semantic roles & 50–950 ramp

primary

#2428A5

secondary

#C3C062

accent

#E241E7

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2428A5

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

Preview Lab → · Contrast checker → · Palette generator →