#2A288B#2A288B

#2A288B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.3% C 0.158 H 275.5°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#2A288B
RGB	rgb(42, 40, 139)
HSL	hsl(241, 55%, 35%)
HSV	hsv(241, 71%, 55%)
CMYK	cmyk(69.8%, 71.2%, 0%, 45.5%)
CIE-LAB	lab(23.25, 33.95, -54.53)
CIE-LCH	lch(23.25, 64.23, 301.91°)
OKLab	oklab(35.26% 0.0151 -0.1575)
OKLCH	oklch(35.26% 0.158 275.5)
XYZ	xyz(6.3723, 3.8733, 24.8329)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A288B #898B28

analogous

#28588B #2A288B #5B288B

triadic

#2A288B #8B2A28 #288B2A

tetradic

#2A288B #8B2858 #898B28 #288B5B

square

#2A288B #8B2858 #898B28 #288B5B

split-complementary

#2A288B #8B5B28 #588B28

monochromatic

#0D0D2C #1C1A5B #2A288B #3836BB #5F5DD0

Accessibility & contrast

On white

11.83

#2A288B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#2A288B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A288B

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A288B	#FFFFFF	#000000	##FFFFFF
##2A288B	1.00	11.83	1.77	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003389

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2a288b;
/* rgb */ color: rgb(42, 40, 139);
/* oklch */ color: oklch(35.3% 0.158 275.5);

Tailwind

colors: {
  custom: {
    50: '#7263ae',
    500: '#2a288b',
    950: '#000000',
  },
}

SCSS

$custom: #2a288b;
$custom-light: #7263ae;
$custom-dark: #000000;

JSON

{
  "hex": "#2a288b",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 139
  },
  "hsl": {
    "h": 241.212,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.35262,
    "c": 0.15823,
    "h": 275.5
  },
  "luminance": 0.03874
}

Semantic roles & 50–950 ramp

primary

#2A288B

secondary

#B4B659

accent

#DF49DC

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #2A288B

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

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