#2F397F#2F397F

#2F397F is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.7% C 0.118 H 273.3°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#2F397F
RGB	rgb(47, 57, 127)
HSL	hsl(233, 46%, 34%)
HSV	hsv(233, 63%, 50%)
CMYK	cmyk(63%, 55.1%, 0%, 50.2%)
CIE-LAB	lab(26.91, 19.14, -41.04)
CIE-LCH	lch(26.91, 45.28, 295.00°)
OKLab	oklab(37.73% 0.0067 -0.1176)
OKLCH	oklch(37.73% 0.118 273.3)
XYZ	xyz(6.4649, 5.0624, 20.7110)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F397F #7F752F

analogous

#2F617F #2F397F #4D2F7F

triadic

#2F397F #7F2F39 #397F2F

tetradic

#2F397F #7F2F61 #7F752F #2F7F4D

square

#2F397F #7F2F61 #7F752F #2F7F4D

split-complementary

#2F397F #7F4D2F #617F2F

monochromatic

#0E1126 #1E2552 #2F397F #404DAC #636FC5

Accessibility & contrast

On white

10.43

#2F397F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#2F397F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F397F

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F397F	#FFFFFF	#000000	##FFFFFF
##2F397F	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4381

Deuteranopia (green-blind)

#003C7E

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2f397f;
/* rgb */ color: rgb(47, 57, 127);
/* oklch */ color: oklch(37.7% 0.118 273.3);

Tailwind

colors: {
  custom: {
    50: '#706fa5',
    500: '#2f397f',
    950: '#000000',
  },
}

SCSS

$custom: #2f397f;
$custom-light: #706fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f397f",
  "rgb": {
    "r": 47,
    "g": 57,
    "b": 127
  },
  "hsl": {
    "h": 232.5,
    "s": 45.977,
    "l": 34.118
  },
  "oklch": {
    "l": 0.3773,
    "c": 0.11784,
    "h": 273.3
  },
  "luminance": 0.05063
}

Semantic roles & 50–950 ramp

primary

#2F397F

secondary

#ACA25E

accent

#C552D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2F397F

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

Preview Lab → · Contrast checker → · Palette generator →