#2F43A9#2F43A9

#2F43A9 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.2% C 0.165 H 269.7°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#2F43A9
RGB	rgb(47, 67, 169)
HSL	hsl(230, 56%, 42%)
HSV	hsv(230, 72%, 66%)
CMYK	cmyk(72.2%, 60.4%, 0%, 33.7%)
CIE-LAB	lab(32.88, 27.98, -57.06)
CIE-LCH	lch(32.88, 63.55, 296.12°)
OKLab	oklab(43.22% -0.001 -0.1646)
OKLCH	oklch(43.22% 0.165 269.7)
XYZ	xyz(10.3384, 7.4822, 38.4278)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F43A9 #A9952F

analogous

#2F80A9 #2F43A9 #582FA9

triadic

#2F43A9 #A92F43 #43A92F

tetradic

#2F43A9 #A92F80 #A9952F #2FA958

square

#2F43A9 #A92F80 #A9952F #2FA958

split-complementary

#2F43A9 #A9582F #80A92F

monochromatic

#141D49 #223079 #2F43A9 #495ECC #7989DA

Accessibility & contrast

On white

8.41

#2F43A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#2F43A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F43A9

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F43A9	#FFFFFF	#000000	##FFFFFF
##2F43A9	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AC

Deuteranopia (green-blind)

#0048A7

Tritanopia (blue-blind)

#005D6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2f43a9;
/* rgb */ color: rgb(47, 67, 169);
/* oklch */ color: oklch(43.2% 0.165 269.7);

Tailwind

colors: {
  custom: {
    50: '#7877c3',
    500: '#2f43a9',
    950: '#000000',
  },
}

SCSS

$custom: #2f43a9;
$custom-light: #7877c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f43a9",
  "rgb": {
    "r": 47,
    "g": 67,
    "b": 169
  },
  "hsl": {
    "h": 230.164,
    "s": 56.481,
    "l": 42.353
  },
  "oklch": {
    "l": 0.43221,
    "c": 0.16465,
    "h": 269.7
  },
  "luminance": 0.07483
}

Semantic roles & 50–950 ramp

primary

#2F43A9

secondary

#C2B572

accent

#C748E0

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F43A9

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

Preview Lab → · Contrast checker → · Palette generator →