#2F3F83#2F3F83

#2F3F83 is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.3% C 0.116 H 270.3°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F83
RGB	rgb(47, 63, 131)
HSL	hsl(229, 47%, 35%)
HSV	hsv(229, 64%, 51%)
CMYK	cmyk(64.1%, 51.9%, 0%, 48.6%)
CIE-LAB	lab(28.90, 16.52, -40.34)
CIE-LCH	lch(28.90, 43.59, 292.27°)
OKLab	oklab(39.32% 0.0007 -0.1155)
OKLCH	oklch(39.32% 0.116 270.3)
XYZ	xyz(7.0452, 5.7974, 22.2161)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F83 #83732F

analogous

#2F6983 #2F3F83 #492F83

triadic

#2F3F83 #832F3F #3F832F

tetradic

#2F3F83 #832F69 #83732F #2F8349

square

#2F3F83 #832F69 #83732F #2F8349

split-complementary

#2F3F83 #83492F #69832F

monochromatic

#0F1429 #1F2956 #2F3F83 #3F55B0 #6578C8

Accessibility & contrast

On white

9.72

#2F3F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2F3F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F83

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F83	#FFFFFF	#000000	##FFFFFF
##2F3F83	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4885

Deuteranopia (green-blind)

#054182

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f3f83;
/* rgb */ color: rgb(47, 63, 131);
/* oklch */ color: oklch(39.3% 0.116 270.3);

Tailwind

colors: {
  custom: {
    50: '#7173a7',
    500: '#2f3f83',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f83;
$custom-light: #7173a7;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f83",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 131
  },
  "hsl": {
    "h": 228.571,
    "s": 47.191,
    "l": 34.902
  },
  "oklch": {
    "l": 0.39319,
    "c": 0.11552,
    "h": 270.3
  },
  "luminance": 0.05798
}

Semantic roles & 50–950 ramp

primary

#2F3F83

secondary

#AF9F5F

accent

#BD51D7

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2F3F83

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

Preview Lab → · Contrast checker → · Palette generator →