#2D288F#2D288F

#2D288F is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.9% C 0.163 H 276.5°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#2D288F
RGB	rgb(45, 40, 143)
HSL	hsl(243, 56%, 36%)
HSV	hsv(243, 72%, 56%)
CMYK	cmyk(68.5%, 72%, 0%, 43.9%)
CIE-LAB	lab(23.86, 35.72, -55.99)
CIE-LCH	lch(23.86, 66.42, 302.53°)
OKLab	oklab(35.88% 0.0184 -0.1617)
OKLCH	oklch(35.88% 0.163 276.5)
XYZ	xyz(6.7973, 4.0580, 26.4063)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D288F #8A8F28

analogous

#28568F #2D288F #60288F

triadic

#2D288F #8F2D28 #288F2D

tetradic

#2D288F #8F2856 #8A8F28 #288F60

square

#2D288F #8F2856 #8A8F28 #288F60

split-complementary

#2D288F #8F6028 #568F28

monochromatic

#0F0D2F #1E1B5F #2D288F #3C35BF #655FD2

Accessibility & contrast

On white

11.59

#2D288F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#2D288F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D288F

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D288F	#FFFFFF	#000000	##FFFFFF
##2D288F	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D92

Deuteranopia (green-blind)

#00348D

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2d288f;
/* rgb */ color: rgb(45, 40, 143);
/* oklch */ color: oklch(35.9% 0.163 276.5);

Tailwind

colors: {
  custom: {
    50: '#7463b1',
    500: '#2d288f',
    950: '#000000',
  },
}

SCSS

$custom: #2d288f;
$custom-light: #7463b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2d288f",
  "rgb": {
    "r": 45,
    "g": 40,
    "b": 143
  },
  "hsl": {
    "h": 242.913,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.3588,
    "c": 0.16276,
    "h": 276.5
  },
  "luminance": 0.04059
}

Semantic roles & 50–950 ramp

primary

#2D288F

secondary

#B3B85B

accent

#E048D8

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #2D288F

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

Preview Lab → · Contrast checker → · Palette generator →