#2F359B#2F359B

#2F359B is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.4% C 0.163 H 273.5°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#2F359B
RGB	rgb(47, 53, 155)
HSL	hsl(237, 53%, 40%)
HSV	hsv(237, 70%, 61%)
CMYK	cmyk(69.7%, 65.8%, 0%, 39.2%)
CIE-LAB	lab(28.16, 32.02, -56.32)
CIE-LCH	lch(28.16, 64.79, 299.62°)
OKLab	oklab(39.37% 0.0101 -0.1626)
OKLCH	oklch(39.37% 0.163 273.5)
XYZ	xyz(8.3598, 5.5163, 31.6282)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F359B #9B952F

analogous

#2F6B9B #2F359B #5F2F9B

triadic

#2F359B #9B2F35 #359B2F

tetradic

#2F359B #9B2F6B #9B952F #2F9B5F

square

#2F359B #9B2F6B #9B952F #2F9B5F

split-complementary

#2F359B #9B5F2F #6B9B2F

monochromatic

#13153D #21256C #2F359B #4249C6 #7176D4

Accessibility & contrast

On white

9.98

#2F359B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2F359B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F359B

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F359B	#FFFFFF	#000000	##FFFFFF
##2F359B	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479E

Deuteranopia (green-blind)

#003E99

Tritanopia (blue-blind)

#005063

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2f359b;
/* rgb */ color: rgb(47, 53, 155);
/* oklch */ color: oklch(39.4% 0.163 273.5);

Tailwind

colors: {
  custom: {
    50: '#766cb9',
    500: '#2f359b',
    950: '#000000',
  },
}

SCSS

$custom: #2f359b;
$custom-light: #766cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f359b",
  "rgb": {
    "r": 47,
    "g": 53,
    "b": 155
  },
  "hsl": {
    "h": 236.667,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.3937,
    "c": 0.16291,
    "h": 273.5
  },
  "luminance": 0.05517
}

Semantic roles & 50–950 ramp

primary

#2F359B

secondary

#BBB76A

accent

#D54BDD

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F359B

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

Preview Lab → · Contrast checker → · Palette generator →