#2F338C#2F338C

#2F338C is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.6% C 0.145 H 275.0°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#2F338C
RGB	rgb(47, 51, 140)
HSL	hsl(237, 50%, 37%)
HSV	hsv(237, 66%, 55%)
CMYK	cmyk(66.4%, 63.6%, 0%, 45.1%)
CIE-LAB	lab(26.35, 27.93, -50.06)
CIE-LCH	lch(26.35, 57.33, 299.16°)
OKLab	oklab(37.64% 0.0127 -0.1442)
OKLCH	oklch(37.64% 0.145 275)
XYZ	xyz(7.0882, 4.8648, 25.3713)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F338C #8C882F

analogous

#2F628C #2F338C #5A2F8C

triadic

#2F338C #8C2F33 #338C2F

tetradic

#2F338C #8C2F62 #8C882F #2F8C5A

square

#2F338C #8C2F62 #8C882F #2F8C5A

split-complementary

#2F338C #8C5A2F #628C2F

monochromatic

#101230 #20225E #2F338C #3E44BA #696DCD

Accessibility & contrast

On white

10.64

#2F338C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#2F338C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F338C

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F338C	#FFFFFF	#000000	##FFFFFF
##2F338C	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438F

Deuteranopia (green-blind)

#003A8A

Tritanopia (blue-blind)

#00495A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2f338c;
/* rgb */ color: rgb(47, 51, 140);
/* oklch */ color: oklch(37.6% 0.145 275.0);

Tailwind

colors: {
  custom: {
    50: '#736bae',
    500: '#2f338c',
    950: '#000000',
  },
}

SCSS

$custom: #2f338c;
$custom-light: #736bae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f338c",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 140
  },
  "hsl": {
    "h": 237.419,
    "s": 49.733,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37635,
    "c": 0.14481,
    "h": 275
  },
  "luminance": 0.04865
}

Semantic roles & 50–950 ramp

primary

#2F338C

secondary

#B4B063

accent

#D34FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F338C

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

Preview Lab → · Contrast checker → · Palette generator →