#2F3C81#2F3C81

#2F3C81 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.5% C 0.117 H 271.8°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#2F3C81
RGB	rgb(47, 60, 129)
HSL	hsl(230, 47%, 35%)
HSV	hsv(230, 64%, 51%)
CMYK	cmyk(63.6%, 53.5%, 0%, 49.4%)
CIE-LAB	lab(27.90, 17.82, -40.69)
CIE-LCH	lch(27.90, 44.42, 293.65°)
OKLab	oklab(38.52% 0.0037 -0.1166)
OKLCH	oklch(38.52% 0.117 271.8)
XYZ	xyz(6.7493, 5.4205, 21.4552)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3C81 #81742F

analogous

#2F6581 #2F3C81 #4B2F81

triadic

#2F3C81 #812F3C #3C812F

tetradic

#2F3C81 #812F65 #81742F #2F814B

square

#2F3C81 #812F65 #81742F #2F814B

split-complementary

#2F3C81 #814B2F #65812F

monochromatic

#0E1227 #1F2754 #2F3C81 #3F51AE #6474C6

Accessibility & contrast

On white

10.08

#2F3C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2F3C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3C81

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3C81	#FFFFFF	#000000	##FFFFFF
##2F3C81	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144683

Deuteranopia (green-blind)

#003E80

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2f3c81;
/* rgb */ color: rgb(47, 60, 129);
/* oklch */ color: oklch(38.5% 0.117 271.8);

Tailwind

colors: {
  custom: {
    50: '#7071a6',
    500: '#2f3c81',
    950: '#000000',
  },
}

SCSS

$custom: #2f3c81;
$custom-light: #7071a6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3c81",
  "rgb": {
    "r": 47,
    "g": 60,
    "b": 129
  },
  "hsl": {
    "h": 230.488,
    "s": 46.591,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38521,
    "c": 0.11667,
    "h": 271.8
  },
  "luminance": 0.05421
}

Semantic roles & 50–950 ramp

primary

#2F3C81

secondary

#ADA15E

accent

#C152D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2F3C81

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

Preview Lab → · Contrast checker → · Palette generator →