#2F316B#2F316B

#2F316B is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.5% C 0.099 H 278.4°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#2F316B
RGB	rgb(47, 49, 107)
HSL	hsl(238, 39%, 30%)
HSV	hsv(238, 56%, 42%)
CMYK	cmyk(56.1%, 54.2%, 0%, 58%)
CIE-LAB	lab(23.21, 17.38, -34.28)
CIE-LCH	lch(23.21, 38.43, 296.88°)
OKLab	oklab(34.49% 0.0144 -0.0979)
OKLCH	oklch(34.49% 0.099 278.4)
XYZ	xyz(4.9236, 3.8622, 14.3931)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F316B #6B692F

analogous

#2F4F6B #2F316B #4B2F6B

triadic

#2F316B #6B2F31 #316B2F

tetradic

#2F316B #6B2F4F #6B692F #2F6B4B

square

#2F316B #6B2F4F #6B692F #2F6B4B

split-complementary

#2F316B #6B4B2F #4F6B2F

monochromatic

#0A0A16 #1C1E40 #2F316B #424496 #5D60B8

Accessibility & contrast

On white

11.85

#2F316B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#2F316B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F316B

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F316B	#FFFFFF	#000000	##FFFFFF
##2F316B	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#133A6D

Deuteranopia (green-blind)

#0B356A

Tritanopia (blue-blind)

#143E49

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2f316b;
/* rgb */ color: rgb(47, 49, 107);
/* oklch */ color: oklch(34.5% 0.099 278.4);

Tailwind

colors: {
  custom: {
    50: '#6d6996',
    500: '#2f316b',
    950: '#000000',
  },
}

SCSS

$custom: #2f316b;
$custom-light: #6d6996;
$custom-dark: #000000;

JSON

{
  "hex": "#2f316b",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 107
  },
  "hsl": {
    "h": 238,
    "s": 38.961,
    "l": 30.196
  },
  "oklch": {
    "l": 0.34485,
    "c": 0.09891,
    "h": 278.4
  },
  "luminance": 0.03862
}

Semantic roles & 50–950 ramp

primary

#2F316B

secondary

#9C9A59

accent

#CB59CF

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #2F316B

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

Preview Lab → · Contrast checker → · Palette generator →