#2F42AC#2F42AC

#2F42AC is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.170 H 269.9°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#2F42AC
RGB	rgb(47, 66, 172)
HSL	hsl(231, 57%, 43%)
HSV	hsv(231, 73%, 67%)
CMYK	cmyk(72.7%, 61.6%, 0%, 32.5%)
CIE-LAB	lab(32.87, 29.75, -58.87)
CIE-LCH	lch(32.87, 65.96, 296.81°)
OKLab	oklab(43.29% -0.0003 -0.17)
OKLCH	oklch(43.29% 0.17 269.9)
XYZ	xyz(10.5644, 7.4782, 39.9084)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F42AC #AC992F

analogous

#2F80AC #2F42AC #5A2FAC

triadic

#2F42AC #AC2F42 #42AC2F

tetradic

#2F42AC #AC2F80 #AC992F #2FAC5A

square

#2F42AC #AC2F80 #AC992F #2FAC5A

split-complementary

#2F42AC #AC5A2F #80AC2F

monochromatic

#151D4C #22307C #2F42AC #4B5ECE #7B89DB

Accessibility & contrast

On white

8.41

#2F42AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#2F42AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F42AC

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F42AC	#FFFFFF	#000000	##FFFFFF
##2F42AC	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)

#0053AF

Deuteranopia (green-blind)

#0048AA

Tritanopia (blue-blind)

#005D70

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2f42ac;
/* rgb */ color: rgb(47, 66, 172);
/* oklch */ color: oklch(43.3% 0.170 269.9);

Tailwind

colors: {
  custom: {
    50: '#7976c6',
    500: '#2f42ac',
    950: '#000000',
  },
}

SCSS

$custom: #2f42ac;
$custom-light: #7976c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f42ac",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 172
  },
  "hsl": {
    "h": 230.88,
    "s": 57.078,
    "l": 42.941
  },
  "oklch": {
    "l": 0.43292,
    "c": 0.16997,
    "h": 269.9
  },
  "luminance": 0.07479
}

Semantic roles & 50–950 ramp

primary

#2F42AC

secondary

#C3B774

accent

#C947E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F42AC

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

Preview Lab → · Contrast checker → · Palette generator →