#2F398F#2F398F

#2F398F is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.0% C 0.141 H 272.9°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#2F398F
RGB	rgb(47, 57, 143)
HSL	hsl(234, 51%, 37%)
HSV	hsv(234, 67%, 56%)
CMYK	cmyk(67.1%, 60.1%, 0%, 43.9%)
CIE-LAB	lab(28.15, 25.03, -48.98)
CIE-LCH	lch(28.15, 55.00, 297.07°)
OKLab	oklab(39.05% 0.0073 -0.141)
OKLCH	oklch(39.05% 0.141 272.9)
XYZ	xyz(7.5917, 5.5131, 26.6453)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F398F #8F852F

analogous

#2F698F #2F398F #552F8F

triadic

#2F398F #8F2F39 #398F2F

tetradic

#2F398F #8F2F69 #8F852F #2F8F55

square

#2F398F #8F2F69 #8F852F #2F8F55

split-complementary

#2F398F #8F552F #698F2F

monochromatic

#111433 #202761 #2F398F #3E4BBD #6A75CE

Accessibility & contrast

On white

9.99

#2F398F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2F398F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F398F

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F398F	#FFFFFF	#000000	##FFFFFF
##2F398F	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004792

Deuteranopia (green-blind)

#003E8D

Tritanopia (blue-blind)

#004E5E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2f398f;
/* rgb */ color: rgb(47, 57, 143);
/* oklch */ color: oklch(39.0% 0.141 272.9);

Tailwind

colors: {
  custom: {
    50: '#736fb0',
    500: '#2f398f',
    950: '#000000',
  },
}

SCSS

$custom: #2f398f;
$custom-light: #736fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f398f",
  "rgb": {
    "r": 47,
    "g": 57,
    "b": 143
  },
  "hsl": {
    "h": 233.75,
    "s": 50.526,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39045,
    "c": 0.14121,
    "h": 272.9
  },
  "luminance": 0.05514
}

Semantic roles & 50–950 ramp

primary

#2F398F

secondary

#B5AD65

accent

#CB4EDA

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2F398F

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

Preview Lab → · Contrast checker → · Palette generator →