#2F337D#2F337D

#2F337D is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.3% C 0.123 H 276.0°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#2F337D
RGB	rgb(47, 51, 125)
HSL	hsl(237, 45%, 34%)
HSV	hsv(237, 62%, 49%)
CMYK	cmyk(62.4%, 59.2%, 0%, 51%)
CIE-LAB	lab(25.11, 22.50, -42.69)
CIE-LCH	lch(25.11, 48.25, 297.79°)
OKLab	oklab(36.34% 0.013 -0.1226)
OKLCH	oklch(36.34% 0.123 276)
XYZ	xyz(6.0566, 4.4522, 19.9383)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F337D #7D792F

analogous

#2F5A7D #2F337D #522F7D

triadic

#2F337D #7D2F33 #337D2F

tetradic

#2F337D #7D2F5A #7D792F #2F7D52

square

#2F337D #7D2F5A #7D792F #2F7D52

split-complementary

#2F337D #7D522F #5A7D2F

monochromatic

#0E0F24 #1E2151 #2F337D #4045A9 #6267C4

Accessibility & contrast

On white

11.11

#2F337D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#2F337D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F337D

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F337D	#FFFFFF	#000000	##FFFFFF
##2F337D	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7F

Deuteranopia (green-blind)

#00387B

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2f337d;
/* rgb */ color: rgb(47, 51, 125);
/* oklch */ color: oklch(36.3% 0.123 276.0);

Tailwind

colors: {
  custom: {
    50: '#706aa3',
    500: '#2f337d',
    950: '#000000',
  },
}

SCSS

$custom: #2f337d;
$custom-light: #706aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f337d",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 125
  },
  "hsl": {
    "h": 236.923,
    "s": 45.349,
    "l": 33.725
  },
  "oklch": {
    "l": 0.36337,
    "c": 0.12327,
    "h": 276
  },
  "luminance": 0.04453
}

Semantic roles & 50–950 ramp

primary

#2F337D

secondary

#ABA75D

accent

#CE53D5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2F337D

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

Preview Lab → · Contrast checker → · Palette generator →