#2F3FA5#2F3FA5

#2F3FA5 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.1% C 0.164 H 270.7°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#2F3FA5
RGB	rgb(47, 63, 165)
HSL	hsl(232, 56%, 42%)
HSV	hsv(232, 72%, 65%)
CMYK	cmyk(71.5%, 61.8%, 0%, 35.3%)
CIE-LAB	lab(31.52, 29.14, -56.88)
CIE-LCH	lch(31.52, 63.91, 297.13°)
OKLab	oklab(42.11% 0.0021 -0.1642)
OKLCH	oklch(42.11% 0.164 270.7)
XYZ	xyz(9.7390, 6.8750, 36.4038)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3FA5 #A5952F

analogous

#2F7AA5 #2F3FA5 #5A2FA5

triadic

#2F3FA5 #A52F3F #3FA52F

tetradic

#2F3FA5 #A52F7A #A5952F #2FA55A

square

#2F3FA5 #A52F7A #A5952F #2FA55A

split-complementary

#2F3FA5 #A55A2F #7AA52F

monochromatic

#141B46 #212D75 #2F3FA5 #4759CB #7684D8

Accessibility & contrast

On white

8.84

#2F3FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#2F3FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3FA5

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3FA5	#FFFFFF	#000000	##FFFFFF
##2F3FA5	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A8

Deuteranopia (green-blind)

#0045A3

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2f3fa5;
/* rgb */ color: rgb(47, 63, 165);
/* oklch */ color: oklch(42.1% 0.164 270.7);

Tailwind

colors: {
  custom: {
    50: '#7874c1',
    500: '#2f3fa5',
    950: '#000000',
  },
}

SCSS

$custom: #2f3fa5;
$custom-light: #7874c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3fa5",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 165
  },
  "hsl": {
    "h": 231.864,
    "s": 55.66,
    "l": 41.569
  },
  "oklch": {
    "l": 0.4211,
    "c": 0.16417,
    "h": 270.7
  },
  "luminance": 0.06876
}

Semantic roles & 50–950 ramp

primary

#2F3FA5

secondary

#C0B570

accent

#CB49DF

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F3FA5

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

Preview Lab → · Contrast checker → · Palette generator →