#2F43A5#2F43A5

#2F43A5 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.9% C 0.159 H 269.6°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#2F43A5
RGB	rgb(47, 67, 165)
HSL	hsl(230, 56%, 42%)
HSV	hsv(230, 72%, 65%)
CMYK	cmyk(71.5%, 59.4%, 0%, 35.3%)
CIE-LAB	lab(32.56, 26.50, -55.19)
CIE-LCH	lch(32.56, 61.22, 295.65°)
OKLab	oklab(42.88% -0.001 -0.1592)
OKLCH	oklch(42.88% 0.159 269.6)
XYZ	xyz(9.9687, 7.3343, 36.4803)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F43A5 #A5912F

analogous

#2F7EA5 #2F43A5 #562FA5

triadic

#2F43A5 #A52F43 #43A52F

tetradic

#2F43A5 #A52F7E #A5912F #2FA556

square

#2F43A5 #A52F7E #A5912F #2FA556

split-complementary

#2F43A5 #A5562F #7EA52F

monochromatic

#141C46 #213075 #2F43A5 #475DCB #7687D8

Accessibility & contrast

On white

8.51

#2F43A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#2F43A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F43A5

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F43A5	#FFFFFF	#000000	##FFFFFF
##2F43A5	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A8

Deuteranopia (green-blind)

#0047A3

Tritanopia (blue-blind)

#005B6D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2f43a5;
/* rgb */ color: rgb(47, 67, 165);
/* oklch */ color: oklch(42.9% 0.159 269.6);

Tailwind

colors: {
  custom: {
    50: '#7876c0',
    500: '#2f43a5',
    950: '#000000',
  },
}

SCSS

$custom: #2f43a5;
$custom-light: #7876c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f43a5",
  "rgb": {
    "r": 47,
    "g": 67,
    "b": 165
  },
  "hsl": {
    "h": 229.831,
    "s": 55.66,
    "l": 41.569
  },
  "oklch": {
    "l": 0.42879,
    "c": 0.15916,
    "h": 269.6
  },
  "luminance": 0.07335
}

Semantic roles & 50–950 ramp

primary

#2F43A5

secondary

#C0B270

accent

#C649DF

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F43A5

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

Preview Lab → · Contrast checker → · Palette generator →