#2A288E#2A288E

#2A288E is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.6% C 0.162 H 275.2°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#2A288E
RGB	rgb(42, 40, 142)
HSL	hsl(241, 56%, 36%)
HSV	hsv(241, 72%, 56%)
CMYK	cmyk(70.4%, 71.8%, 0%, 44.3%)
CIE-LAB	lab(23.55, 35.00, -55.90)
CIE-LCH	lch(23.55, 65.95, 302.05°)
OKLab	oklab(35.57% 0.0147 -0.1615)
OKLCH	oklch(35.57% 0.162 275.2)
XYZ	xyz(6.5945, 3.9622, 26.0032)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A288E #8C8E28

analogous

#28598E #2A288E #5D288E

triadic

#2A288E #8E2A28 #288E2A

tetradic

#2A288E #8E2859 #8C8E28 #288E5D

square

#2A288E #8E2859 #8C8E28 #288E5D

split-complementary

#2A288E #8E5D28 #598E28

monochromatic

#0E0D2F #1C1B5E #2A288E #3835BE #615FD2

Accessibility & contrast

On white

11.71

#2A288E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2A288E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A288E

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A288E	#FFFFFF	#000000	##FFFFFF
##2A288E	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D91

Deuteranopia (green-blind)

#00338C

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2a288e;
/* rgb */ color: rgb(42, 40, 142);
/* oklch */ color: oklch(35.6% 0.162 275.2);

Tailwind

colors: {
  custom: {
    50: '#7363b0',
    500: '#2a288e',
    950: '#000000',
  },
}

SCSS

$custom: #2a288e;
$custom-light: #7363b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a288e",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 142
  },
  "hsl": {
    "h": 241.176,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35566,
    "c": 0.1622,
    "h": 275.2
  },
  "luminance": 0.03963
}

Semantic roles & 50–950 ramp

primary

#2A288E

secondary

#B5B75B

accent

#DF48DC

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #2A288E

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

Preview Lab → · Contrast checker → · Palette generator →