#2F338B#2F338B

#2F338B is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.5% C 0.143 H 275.1°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#2F338B
RGB	rgb(47, 51, 139)
HSL	hsl(237, 49%, 36%)
HSV	hsv(237, 66%, 55%)
CMYK	cmyk(66.2%, 63.3%, 0%, 45.5%)
CIE-LAB	lab(26.26, 27.57, -49.58)
CIE-LCH	lch(26.26, 56.73, 299.08°)
OKLab	oklab(37.55% 0.0127 -0.1428)
OKLCH	oklch(37.55% 0.143 275.1)
XYZ	xyz(7.0148, 4.8355, 24.9848)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F338B #8B872F

analogous

#2F618B #2F338B #592F8B

triadic

#2F338B #8B2F33 #338B2F

tetradic

#2F338B #8B2F61 #8B872F #2F8B59

square

#2F338B #8B2F61 #8B872F #2F8B59

split-complementary

#2F338B #8B592F #618B2F

monochromatic

#101130 #20225D #2F338B #3E44B9 #686DCC

Accessibility & contrast

On white

10.68

#2F338B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#2F338B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F338B

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F338B	#FFFFFF	#000000	##FFFFFF
##2F338B	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428E

Deuteranopia (green-blind)

#003A89

Tritanopia (blue-blind)

#00495A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2f338b;
/* rgb */ color: rgb(47, 51, 139);
/* oklch */ color: oklch(37.5% 0.143 275.1);

Tailwind

colors: {
  custom: {
    50: '#736aae',
    500: '#2f338b',
    950: '#000000',
  },
}

SCSS

$custom: #2f338b;
$custom-light: #736aae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f338b",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 139
  },
  "hsl": {
    "h": 237.391,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.37546,
    "c": 0.14341,
    "h": 275.1
  },
  "luminance": 0.04836
}

Semantic roles & 50–950 ramp

primary

#2F338B

secondary

#B3B063

accent

#D34FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F338B

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

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