#2A288F#2A288F

#2A288F is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.7% C 0.164 H 275.1°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#2A288F
RGB	rgb(42, 40, 143)
HSL	hsl(241, 56%, 36%)
HSV	hsv(241, 72%, 56%)
CMYK	cmyk(70.6%, 72%, 0%, 43.9%)
CIE-LAB	lab(23.65, 35.35, -56.36)
CIE-LCH	lch(23.65, 66.53, 302.10°)
OKLab	oklab(35.67% 0.0145 -0.1629)
OKLCH	oklch(35.67% 0.164 275.1)
XYZ	xyz(6.6699, 3.9924, 26.4004)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A288F #8D8F28

analogous

#28598F #2A288F #5D288F

triadic

#2A288F #8F2A28 #288F2A

tetradic

#2A288F #8F2859 #8D8F28 #288F5D

square

#2A288F #8F2859 #8D8F28 #288F5D

split-complementary

#2A288F #8F5D28 #598F28

monochromatic

#0E0D2F #1C1B5F #2A288F #3835BF #615FD2

Accessibility & contrast

On white

11.68

#2A288F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#2A288F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A288F

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A288F	#FFFFFF	#000000	##FFFFFF
##2A288F	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D92

Deuteranopia (green-blind)

#00348D

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2a288f;
/* rgb */ color: rgb(42, 40, 143);
/* oklch */ color: oklch(35.7% 0.164 275.1);

Tailwind

colors: {
  custom: {
    50: '#7363b1',
    500: '#2a288f',
    950: '#000000',
  },
}

SCSS

$custom: #2a288f;
$custom-light: #7363b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a288f",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 143
  },
  "hsl": {
    "h": 241.165,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.35669,
    "c": 0.16351,
    "h": 275.1
  },
  "luminance": 0.03993
}

Semantic roles & 50–950 ramp

primary

#2A288F

secondary

#B6B85B

accent

#E048DD

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #2A288F

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

Preview Lab → · Contrast checker → · Palette generator →