#2F42AD#2F42AD

#2F42AD is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.4% C 0.171 H 269.9°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#2F42AD
RGB	rgb(47, 66, 173)
HSL	hsl(231, 57%, 43%)
HSV	hsv(231, 73%, 68%)
CMYK	cmyk(72.8%, 61.8%, 0%, 32.2%)
CIE-LAB	lab(32.96, 30.12, -59.33)
CIE-LCH	lch(32.96, 66.53, 296.91°)
OKLab	oklab(43.38% -0.0003 -0.1713)
OKLCH	oklch(43.38% 0.171 269.9)
XYZ	xyz(10.6607, 7.5168, 40.4161)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F42AD #AD9A2F

analogous

#2F81AD #2F42AD #5B2FAD

triadic

#2F42AD #AD2F42 #42AD2F

tetradic

#2F42AD #AD2F81 #AD9A2F #2FAD5B

square

#2F42AD #AD2F81 #AD9A2F #2FAD5B

split-complementary

#2F42AD #AD5B2F #81AD2F

monochromatic

#151D4D #22307D #2F42AD #4B5FCE #7B8ADB

Accessibility & contrast

On white

8.39

#2F42AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#2F42AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F42AD

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F42AD	#FFFFFF	#000000	##FFFFFF
##2F42AD	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B0

Deuteranopia (green-blind)

#0048AB

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2f42ad;
/* rgb */ color: rgb(47, 66, 173);
/* oklch */ color: oklch(43.4% 0.171 269.9);

Tailwind

colors: {
  custom: {
    50: '#7976c6',
    500: '#2f42ad',
    950: '#000000',
  },
}

SCSS

$custom: #2f42ad;
$custom-light: #7976c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f42ad",
  "rgb": {
    "r": 47,
    "g": 66,
    "b": 173
  },
  "hsl": {
    "h": 230.952,
    "s": 57.273,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4338,
    "c": 0.17131,
    "h": 269.9
  },
  "luminance": 0.07518
}

Semantic roles & 50–950 ramp

primary

#2F42AD

secondary

#C4B874

accent

#C947E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F42AD

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

Preview Lab → · Contrast checker → · Palette generator →