#2A287F#2A287F

#2A287F is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.1% C 0.142 H 276.8°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#2A287F
RGB	rgb(42, 40, 127)
HSL	hsl(241, 52%, 33%)
HSV	hsv(241, 69%, 50%)
CMYK	cmyk(66.9%, 68.5%, 0%, 50.2%)
CIE-LAB	lab(22.09, 29.70, -48.89)
CIE-LCH	lch(22.09, 57.20, 301.28°)
OKLab	oklab(34.08% 0.0167 -0.141)
OKLCH	oklch(34.08% 0.142 276.8)
XYZ	xyz(5.5432, 3.5417, 20.4661)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A287F #7D7F28

analogous

#28527F #2A287F #55287F

triadic

#2A287F #7F2A28 #287F2A

tetradic

#2A287F #7F2852 #7D7F28 #287F55

square

#2A287F #7F2852 #7D7F28 #287F55

split-complementary

#2A287F #7F5528 #527F28

monochromatic

#0B0B22 #1B1950 #2A287F #3937AE #5A57CA

Accessibility & contrast

On white

12.29

#2A287F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#2A287F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A287F

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A287F	#FFFFFF	#000000	##FFFFFF
##2A287F	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003982

Deuteranopia (green-blind)

#00317D

Tritanopia (blue-blind)

#003F50

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #2a287f;
/* rgb */ color: rgb(42, 40, 127);
/* oklch */ color: oklch(34.1% 0.142 276.8);

Tailwind

colors: {
  custom: {
    50: '#6f62a5',
    500: '#2a287f',
    950: '#000000',
  },
}

SCSS

$custom: #2a287f;
$custom-light: #6f62a5;
$custom-dark: #000000;

JSON

{
  "hex": "#2a287f",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 127
  },
  "hsl": {
    "h": 241.379,
    "s": 52.096,
    "l": 32.745
  },
  "oklch": {
    "l": 0.34076,
    "c": 0.142,
    "h": 276.8
  },
  "luminance": 0.03542
}

Semantic roles & 50–950 ramp

primary

#2A287F

secondary

#ADAF54

accent

#DC4CD8

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#08050F

muted

#7B797F

Preview Lab

Preview with #2A287F

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

Preview Lab → · Contrast checker → · Palette generator →