#2F317B#2F317B

#2F317B is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.8% C 0.123 H 277.0°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#2F317B
RGB	rgb(47, 49, 123)
HSL	hsl(238, 45%, 33%)
HSV	hsv(238, 62%, 48%)
CMYK	cmyk(61.8%, 60.2%, 0%, 51.8%)
CIE-LAB	lab(24.42, 23.13, -42.55)
CIE-LCH	lch(24.42, 48.43, 298.53°)
OKLab	oklab(35.77% 0.0151 -0.1222)
OKLCH	oklch(35.77% 0.123 277)
XYZ	xyz(5.8446, 4.2306, 19.2436)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F317B #7B792F

analogous

#2F577B #2F317B #532F7B

triadic

#2F317B #7B2F31 #317B2F

tetradic

#2F317B #7B2F57 #7B792F #2F7B53

square

#2F317B #7B2F57 #7B792F #2F7B53

split-complementary

#2F317B #7B532F #577B2F

monochromatic

#0D0E22 #1E1F4F #2F317B #4043A7 #6264C3

Accessibility & contrast

On white

11.37

#2F317B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#2F317B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F317B

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F317B	#FFFFFF	#000000	##FFFFFF
##2F317B	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7D

Deuteranopia (green-blind)

#003779

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2f317b;
/* rgb */ color: rgb(47, 49, 123);
/* oklch */ color: oklch(35.8% 0.123 277.0);

Tailwind

colors: {
  custom: {
    50: '#7069a2',
    500: '#2f317b',
    950: '#000000',
  },
}

SCSS

$custom: #2f317b;
$custom-light: #7069a2;
$custom-dark: #000000;

JSON

{
  "hex": "#2f317b",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 123
  },
  "hsl": {
    "h": 238.421,
    "s": 44.706,
    "l": 33.333
  },
  "oklch": {
    "l": 0.35772,
    "c": 0.12311,
    "h": 277
  },
  "luminance": 0.04231
}

Semantic roles & 50–950 ramp

primary

#2F317B

secondary

#AAA85C

accent

#D153D4

background

#F7F6FA

surface

#EDEBF3

border

#C8C6CD

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2F317B

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

Preview Lab → · Contrast checker → · Palette generator →