#2A288C#2A288C

#2A288C is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.4% C 0.160 H 275.4°. Best body text is #FFFFFF at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#2A288C
RGB	rgb(42, 40, 140)
HSL	hsl(241, 56%, 35%)
HSV	hsv(241, 71%, 55%)
CMYK	cmyk(70%, 71.4%, 0%, 45.1%)
CIE-LAB	lab(23.35, 34.30, -54.99)
CIE-LCH	lch(23.35, 64.81, 301.95°)
OKLab	oklab(35.36% 0.015 -0.1589)
OKLCH	oklch(35.36% 0.16 275.4)
XYZ	xyz(6.4457, 3.9027, 25.2195)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A288C #8A8C28

analogous

#28588C #2A288C #5C288C

triadic

#2A288C #8C2A28 #288C2A

tetradic

#2A288C #8C2858 #8A8C28 #288C5C

square

#2A288C #8C2858 #8A8C28 #288C5C

split-complementary

#2A288C #8C5C28 #588C28

monochromatic

#0D0D2D #1C1A5C #2A288C #3836BC #605ED1

Accessibility & contrast

On white

11.79

#2A288C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#2A288C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A288C

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A288C	#FFFFFF	#000000	##FFFFFF
##2A288C	1.00	11.79	1.78	11.79
#FFFFFF	11.79	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8F

Deuteranopia (green-blind)

#00338A

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2a288c;
/* rgb */ color: rgb(42, 40, 140);
/* oklch */ color: oklch(35.4% 0.160 275.4);

Tailwind

colors: {
  custom: {
    50: '#7263af',
    500: '#2a288c',
    950: '#000000',
  },
}

SCSS

$custom: #2a288c;
$custom-light: #7263af;
$custom-dark: #000000;

JSON

{
  "hex": "#2a288c",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 140
  },
  "hsl": {
    "h": 241.2,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.35363,
    "c": 0.15956,
    "h": 275.4
  },
  "luminance": 0.03903
}

Semantic roles & 50–950 ramp

primary

#2A288C

secondary

#B4B65A

accent

#DF49DC

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#090510

muted

#7B797F

Preview Lab

Preview with #2A288C

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

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