#2F3FA8#2F3FA8

#2F3FA8 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.168 H 270.7°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#2F3FA8
RGB	rgb(47, 63, 168)
HSL	hsl(232, 56%, 42%)
HSV	hsv(232, 72%, 66%)
CMYK	cmyk(72%, 62.5%, 0%, 34.1%)
CIE-LAB	lab(31.77, 30.24, -58.27)
CIE-LCH	lch(31.77, 65.65, 297.43°)
OKLab	oklab(42.38% 0.002 -0.1682)
OKLCH	oklch(42.38% 0.168 270.7)
XYZ	xyz(10.0153, 6.9855, 37.8587)
Luminance	0.0699 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3FA8 #A8982F

analogous

#2F7CA8 #2F3FA8 #5C2FA8

triadic

#2F3FA8 #A82F3F #3FA82F

tetradic

#2F3FA8 #A82F7C #A8982F #2FA85C

square

#2F3FA8 #A82F7C #A8982F #2FA85C

split-complementary

#2F3FA8 #A85C2F #7CA82F

monochromatic

#141B48 #222D78 #2F3FA8 #485ACC #7885D9

Accessibility & contrast

On white

8.76

#2F3FA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2F3FA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3FA8

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3FA8	#FFFFFF	#000000	##FFFFFF
##2F3FA8	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AB

Deuteranopia (green-blind)

#0045A6

Tritanopia (blue-blind)

#005A6D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f3fa8;
/* rgb */ color: rgb(47, 63, 168);
/* oklch */ color: oklch(42.4% 0.168 270.7);

Tailwind

colors: {
  custom: {
    50: '#7974c3',
    500: '#2f3fa8',
    950: '#000000',
  },
}

SCSS

$custom: #2f3fa8;
$custom-light: #7974c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3fa8",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 168
  },
  "hsl": {
    "h": 232.066,
    "s": 56.279,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42376,
    "c": 0.16824,
    "h": 270.7
  },
  "luminance": 0.06987
}

Semantic roles & 50–950 ramp

primary

#2F3FA8

secondary

#C1B771

accent

#CC48E0

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F3FA8

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

Preview Lab → · Contrast checker → · Palette generator →