#2F308D#2F308D

#2F308D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.2% C 0.150 H 275.8°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#2F308D
RGB	rgb(47, 48, 141)
HSL	hsl(239, 50%, 37%)
HSV	hsv(239, 67%, 55%)
CMYK	cmyk(66.7%, 66%, 0%, 44.7%)
CIE-LAB	lab(25.69, 30.26, -51.76)
CIE-LCH	lch(25.69, 59.95, 300.31°)
OKLab	oklab(37.18% 0.0152 -0.1493)
OKLCH	oklch(37.18% 0.15 275.8)
XYZ	xyz(7.0354, 4.6407, 25.7191)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F308D #8D8C2F

analogous

#2F5F8D #2F308D #5D2F8D

triadic

#2F308D #8D2F30 #308D2F

tetradic

#2F308D #8D2F5F #8D8C2F #2F8D5D

square

#2F308D #8D2F5F #8D8C2F #2F8D5D

split-complementary

#2F308D #8D5D2F #5F8D2F

monochromatic

#101131 #20205F #2F308D #3E40BB #696ACD

Accessibility & contrast

On white

10.89

#2F308D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2F308D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F308D

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F308D	#FFFFFF	#000000	##FFFFFF
##2F308D	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004190

Deuteranopia (green-blind)

#00398B

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f308d;
/* rgb */ color: rgb(47, 48, 141);
/* oklch */ color: oklch(37.2% 0.150 275.8);

Tailwind

colors: {
  custom: {
    50: '#7468af',
    500: '#2f308d',
    950: '#000000',
  },
}

SCSS

$custom: #2f308d;
$custom-light: #7468af;
$custom-dark: #000000;

JSON

{
  "hex": "#2f308d",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 141
  },
  "hsl": {
    "h": 239.362,
    "s": 50,
    "l": 36.863
  },
  "oklch": {
    "l": 0.37179,
    "c": 0.15003,
    "h": 275.8
  },
  "luminance": 0.04641
}

Semantic roles & 50–950 ramp

primary

#2F308D

secondary

#B4B364

accent

#D84EDA

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F308D

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

Preview Lab → · Contrast checker → · Palette generator →