#2F3D8A#2F3D8A

#2F3D8A is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.129 H 271.5°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#2F3D8A
RGB	rgb(47, 61, 138)
HSL	hsl(231, 49%, 36%)
HSV	hsv(231, 66%, 54%)
CMYK	cmyk(65.9%, 55.8%, 0%, 45.9%)
CIE-LAB	lab(28.84, 20.48, -44.77)
CIE-LCH	lch(28.84, 49.23, 294.58°)
OKLab	oklab(39.44% 0.0034 -0.1286)
OKLCH	oklch(39.44% 0.129 271.5)
XYZ	xyz(7.4269, 5.7762, 24.7633)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3D8A #8A7C2F

analogous

#2F6B8A #2F3D8A #4F2F8A

triadic

#2F3D8A #8A2F3D #3D8A2F

tetradic

#2F3D8A #8A2F6B #8A7C2F #2F8A4F

square

#2F3D8A #8A2F6B #8A7C2F #2F8A4F

split-complementary

#2F3D8A #8A4F2F #6B8A2F

monochromatic

#10152F #1F295C #2F3D8A #3F51B8 #6877CC

Accessibility & contrast

On white

9.74

#2F3D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2F3D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3D8A

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3D8A	#FFFFFF	#000000	##FFFFFF
##2F3D8A	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05488D

Deuteranopia (green-blind)

#004088

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f3d8a;
/* rgb */ color: rgb(47, 61, 138);
/* oklch */ color: oklch(39.4% 0.129 271.5);

Tailwind

colors: {
  custom: {
    50: '#7272ad',
    500: '#2f3d8a',
    950: '#000000',
  },
}

SCSS

$custom: #2f3d8a;
$custom-light: #7272ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3d8a",
  "rgb": {
    "r": 47,
    "g": 61,
    "b": 138
  },
  "hsl": {
    "h": 230.769,
    "s": 49.189,
    "l": 36.275
  },
  "oklch": {
    "l": 0.39439,
    "c": 0.12863,
    "h": 271.5
  },
  "luminance": 0.05777
}

Semantic roles & 50–950 ramp

primary

#2F3D8A

secondary

#B3A662

accent

#C44FD9

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F3D8A

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

Preview Lab → · Contrast checker → · Palette generator →