#2F43AB#2F43AB

#2F43AB is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.4% C 0.167 H 269.7°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#2F43AB
RGB	rgb(47, 67, 171)
HSL	hsl(230, 57%, 43%)
HSV	hsv(230, 73%, 67%)
CMYK	cmyk(72.5%, 60.8%, 0%, 32.9%)
CIE-LAB	lab(33.04, 28.72, -57.99)
CIE-LCH	lch(33.04, 64.71, 296.35°)
OKLab	oklab(43.4% -0.001 -0.1674)
OKLCH	oklch(43.4% 0.167 269.7)
XYZ	xyz(10.5276, 7.5578, 39.4242)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F43AB #AB972F

analogous

#2F81AB #2F43AB #592FAB

triadic

#2F43AB #AB2F43 #43AB2F

tetradic

#2F43AB #AB2F81 #AB972F #2FAB59

square

#2F43AB #AB2F81 #AB972F #2FAB59

split-complementary

#2F43AB #AB592F #81AB2F

monochromatic

#151D4B #22307B #2F43AB #4A5FCD #7A8ADA

Accessibility & contrast

On white

8.36

#2F43AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#2F43AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F43AB

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F43AB	#FFFFFF	#000000	##FFFFFF
##2F43AB	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AE

Deuteranopia (green-blind)

#0048A9

Tritanopia (blue-blind)

#005D70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2f43ab;
/* rgb */ color: rgb(47, 67, 171);
/* oklch */ color: oklch(43.4% 0.167 269.7);

Tailwind

colors: {
  custom: {
    50: '#7977c5',
    500: '#2f43ab',
    950: '#000000',
  },
}

SCSS

$custom: #2f43ab;
$custom-light: #7977c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f43ab",
  "rgb": {
    "r": 47,
    "g": 67,
    "b": 171
  },
  "hsl": {
    "h": 230.323,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.43395,
    "c": 0.16737,
    "h": 269.7
  },
  "luminance": 0.07559
}

Semantic roles & 50–950 ramp

primary

#2F43AB

secondary

#C3B673

accent

#C848E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F43AB

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

Preview Lab → · Contrast checker → · Palette generator →