#2F288C#2F288C

#2F288C is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.7% C 0.158 H 277.8°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#2F288C
RGB	rgb(47, 40, 140)
HSL	hsl(244, 56%, 35%)
HSV	hsv(244, 71%, 55%)
CMYK	cmyk(66.4%, 71.4%, 0%, 45.1%)
CIE-LAB	lab(23.72, 34.96, -54.36)
CIE-LCH	lch(23.72, 64.63, 302.75°)
OKLab	oklab(35.73% 0.0216 -0.1569)
OKLCH	oklch(35.73% 0.158 277.8)
XYZ	xyz(6.6632, 4.0148, 25.2297)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F288C #858C28

analogous

#28538C #2F288C #61288C

triadic

#2F288C #8C2F28 #288C2F

tetradic

#2F288C #8C2853 #858C28 #288C61

square

#2F288C #8C2853 #858C28 #288C61

split-complementary

#2F288C #8C6128 #538C28

monochromatic

#0F0D2D #1F1A5C #2F288C #3F36BC #665ED1

Accessibility & contrast

On white

11.65

#2F288C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#2F288C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F288C

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F288C	#FFFFFF	#000000	##FFFFFF
##2F288C	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8F

Deuteranopia (green-blind)

#00348A

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2f288c;
/* rgb */ color: rgb(47, 40, 140);
/* oklch */ color: oklch(35.7% 0.158 277.8);

Tailwind

colors: {
  custom: {
    50: '#7463af',
    500: '#2f288c',
    950: '#000000',
  },
}

SCSS

$custom: #2f288c;
$custom-light: #7463af;
$custom-dark: #000000;

JSON

{
  "hex": "#2f288c",
  "rgb": {
    "r": 47,
    "g": 40,
    "b": 140
  },
  "hsl": {
    "h": 244.2,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.35728,
    "c": 0.15836,
    "h": 277.8
  },
  "luminance": 0.04015
}

Semantic roles & 50–950 ramp

primary

#2F288C

secondary

#B0B65A

accent

#DF49D4

background

#F7F5FA

surface

#EEEAF5

border

#C9C6CF

text

#090510

muted

#7B797F

Preview Lab

Preview with #2F288C

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

Preview Lab → · Contrast checker → · Palette generator →