#2947B3#2947B3

#2947B3 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.6% C 0.175 H 267.0°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#2947B3
RGB	rgb(41, 71, 179)
HSL	hsl(227, 63%, 43%)
HSV	hsv(227, 77%, 70%)
CMYK	cmyk(77.1%, 60.3%, 0%, 29.8%)
CIE-LAB	lab(34.46, 28.37, -60.45)
CIE-LCH	lch(34.46, 66.78, 295.14°)
OKLab	oklab(44.58% -0.0093 -0.1747)
OKLCH	oklch(44.58% 0.175 267)
XYZ	xyz(11.3015, 8.2313, 43.6323)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2947B3 #B39529

analogous

#298CB3 #2947B3 #5029B3

triadic

#2947B3 #B32947 #47B329

tetradic

#2947B3 #B3298C #B39529 #29B350

square

#2947B3 #B3298C #B39529 #29B350

split-complementary

#2947B3 #B35029 #8CB329

monochromatic

#121F4F #1E3381 #2947B3 #4564D4 #778DE0

Accessibility & contrast

On white

7.93

#2947B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#2947B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2947B3

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2947B3	#FFFFFF	#000000	##FFFFFF
##2947B3	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B7

Deuteranopia (green-blind)

#004BB1

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2947b3;
/* rgb */ color: rgb(41, 71, 179);
/* oklch */ color: oklch(44.6% 0.175 267.0);

Tailwind

colors: {
  custom: {
    50: '#7879cb',
    500: '#2947b3',
    950: '#000000',
  },
}

SCSS

$custom: #2947b3;
$custom-light: #7879cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2947b3",
  "rgb": {
    "r": 41,
    "g": 71,
    "b": 179
  },
  "hsl": {
    "h": 226.957,
    "s": 62.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.44576,
    "c": 0.17492,
    "h": 267
  },
  "luminance": 0.08233
}

Semantic roles & 50–950 ramp

primary

#2947B3

secondary

#C7B470

accent

#C242E6

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2947B3

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

Preview Lab → · Contrast checker → · Palette generator →