#2F3EB3#2F3EB3

#2F3EB3 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.2% C 0.184 H 270.7°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#2F3EB3
RGB	rgb(47, 62, 179)
HSL	hsl(233, 58%, 44%)
HSV	hsv(233, 74%, 70%)
CMYK	cmyk(73.7%, 65.4%, 0%, 29.8%)
CIE-LAB	lab(32.49, 34.88, -63.67)
CIE-LCH	lch(32.49, 72.59, 298.72°)
OKLab	oklab(43.2% 0.0022 -0.1841)
OKLCH	oklch(43.2% 0.184 270.7)
XYZ	xyz(11.0288, 7.3031, 43.4675)
Luminance	0.0730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3EB3 #B3A42F

analogous

#2F80B3 #2F3EB3 #622FB3

triadic

#2F3EB3 #B32F3E #3EB32F

tetradic

#2F3EB3 #B32F80 #B3A42F #2FB362

square

#2F3EB3 #B32F80 #B3A42F #2FB362

split-complementary

#2F3EB3 #B3622F #80B32F

monochromatic

#161C52 #222D83 #2F3EB3 #4F5DD1 #7F8ADD

Accessibility & contrast

On white

8.53

#2F3EB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#2F3EB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3EB3

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3EB3	#FFFFFF	#000000	##FFFFFF
##2F3EB3	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B7

Deuteranopia (green-blind)

#0046B1

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3eb3;
/* rgb */ color: rgb(47, 62, 179);
/* oklch */ color: oklch(43.2% 0.184 270.7);

Tailwind

colors: {
  custom: {
    50: '#7b73cb',
    500: '#2f3eb3',
    950: '#000000',
  },
}

SCSS

$custom: #2f3eb3;
$custom-light: #7b73cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3eb3",
  "rgb": {
    "r": 47,
    "g": 62,
    "b": 179
  },
  "hsl": {
    "h": 233.182,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.43197,
    "c": 0.18407,
    "h": 270.7
  },
  "luminance": 0.07304
}

Semantic roles & 50–950 ramp

primary

#2F3EB3

secondary

#C6BD78

accent

#D046E2

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F3EB3

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

Preview Lab → · Contrast checker → · Palette generator →