#2F3B71#2F3B71

#2F3B71 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.1% C 0.094 H 271.7°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#2F3B71
RGB	rgb(47, 59, 113)
HSL	hsl(229, 41%, 31%)
HSV	hsv(229, 58%, 44%)
CMYK	cmyk(58.4%, 47.8%, 0%, 55.7%)
CIE-LAB	lab(26.52, 12.63, -32.82)
CIE-LCH	lch(26.52, 35.17, 291.04°)
OKLab	oklab(37.12% 0.0028 -0.0935)
OKLCH	oklch(37.12% 0.094 271.7)
XYZ	xyz(5.7159, 4.9241, 16.2688)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3B71 #71652F

analogous

#2F5C71 #2F3B71 #442F71

triadic

#2F3B71 #712F3B #3B712F

tetradic

#2F3B71 #712F5C #71652F #2F7144

square

#2F3B71 #712F5C #71652F #2F7144

split-complementary

#2F3B71 #71442F #5C712F

monochromatic

#0B0E1B #1D2446 #2F3B71 #41529C #5E6FBC

Accessibility & contrast

On white

10.58

#2F3B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#2F3B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3B71

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3B71	#FFFFFF	#000000	##FFFFFF
##2F3B71	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234273

Deuteranopia (green-blind)

#1A3C70

Tritanopia (blue-blind)

#094750

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2f3b71;
/* rgb */ color: rgb(47, 59, 113);
/* oklch */ color: oklch(37.1% 0.094 271.7);

Tailwind

colors: {
  custom: {
    50: '#6d709a',
    500: '#2f3b71',
    950: '#000000',
  },
}

SCSS

$custom: #2f3b71;
$custom-light: #6d709a;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3b71",
  "rgb": {
    "r": 47,
    "g": 59,
    "b": 113
  },
  "hsl": {
    "h": 229.091,
    "s": 41.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.3712,
    "c": 0.09352,
    "h": 271.7
  },
  "luminance": 0.04925
}

Semantic roles & 50–950 ramp

primary

#2F3B71

secondary

#A2955A

accent

#BB57D1

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #2F3B71

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

Preview Lab → · Contrast checker → · Palette generator →