#2F3DB3#2F3DB3

#2F3DB3 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.185 H 270.9°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#2F3DB3
RGB	rgb(47, 61, 179)
HSL	hsl(234, 58%, 44%)
HSV	hsv(234, 74%, 70%)
CMYK	cmyk(73.7%, 65.9%, 0%, 29.8%)
CIE-LAB	lab(32.25, 35.51, -64.06)
CIE-LCH	lch(32.25, 73.24, 299.00°)
OKLab	oklab(43.02% 0.0028 -0.1852)
OKLCH	oklch(43.02% 0.185 270.9)
XYZ	xyz(10.9749, 7.1954, 43.4495)
Luminance	0.0720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3DB3 #B3A52F

analogous

#2F7FB3 #2F3DB3 #632FB3

triadic

#2F3DB3 #B32F3D #3DB32F

tetradic

#2F3DB3 #B32F7F #B3A52F #2FB363

square

#2F3DB3 #B32F7F #B3A52F #2FB363

split-complementary

#2F3DB3 #B3632F #7FB32F

monochromatic

#161C52 #222C83 #2F3DB3 #4F5CD1 #7F89DD

Accessibility & contrast

On white

8.61

#2F3DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#2F3DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3DB3

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3DB3	#FFFFFF	#000000	##FFFFFF
##2F3DB3	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B7

Deuteranopia (green-blind)

#0046B1

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3db3;
/* rgb */ color: rgb(47, 61, 179);
/* oklch */ color: oklch(43.0% 0.185 270.9);

Tailwind

colors: {
  custom: {
    50: '#7b72cb',
    500: '#2f3db3',
    950: '#000000',
  },
}

SCSS

$custom: #2f3db3;
$custom-light: #7b72cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3db3",
  "rgb": {
    "r": 47,
    "g": 61,
    "b": 179
  },
  "hsl": {
    "h": 233.636,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.43021,
    "c": 0.18524,
    "h": 270.9
  },
  "luminance": 0.07196
}

Semantic roles & 50–950 ramp

primary

#2F3DB3

secondary

#C6BE78

accent

#D146E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F3DB3

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

Preview Lab → · Contrast checker → · Palette generator →