#2F3A8D#2F3A8D

#2F3A8D is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.137 H 272.6°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#2F3A8D
RGB	rgb(47, 58, 141)
HSL	hsl(233, 50%, 37%)
HSV	hsv(233, 67%, 55%)
CMYK	cmyk(66.7%, 58.9%, 0%, 44.7%)
CIE-LAB	lab(28.26, 23.62, -47.57)
CIE-LCH	lch(28.26, 53.11, 296.41°)
OKLab	oklab(39.07% 0.0063 -0.1369)
OKLCH	oklch(39.07% 0.137 272.6)
XYZ	xyz(7.4915, 5.5529, 25.8712)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3A8D #8D822F

analogous

#2F698D #2F3A8D #532F8D

triadic

#2F3A8D #8D2F3A #3A8D2F

tetradic

#2F3A8D #8D2F69 #8D822F #2F8D53

square

#2F3A8D #8D2F69 #8D822F #2F8D53

split-complementary

#2F3A8D #8D532F #698D2F

monochromatic

#101431 #20275F #2F3A8D #3E4DBB #6975CD

Accessibility & contrast

On white

9.95

#2F3A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2F3A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3A8D

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3A8D	#FFFFFF	#000000	##FFFFFF
##2F3A8D	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004790

Deuteranopia (green-blind)

#003F8B

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f3a8d;
/* rgb */ color: rgb(47, 58, 141);
/* oklch */ color: oklch(39.1% 0.137 272.6);

Tailwind

colors: {
  custom: {
    50: '#7370af',
    500: '#2f3a8d',
    950: '#000000',
  },
}

SCSS

$custom: #2f3a8d;
$custom-light: #7370af;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3a8d",
  "rgb": {
    "r": 47,
    "g": 58,
    "b": 141
  },
  "hsl": {
    "h": 232.979,
    "s": 50,
    "l": 36.863
  },
  "oklch": {
    "l": 0.39074,
    "c": 0.13702,
    "h": 272.6
  },
  "luminance": 0.05554
}

Semantic roles & 50–950 ramp

primary

#2F3A8D

secondary

#B4AB64

accent

#C94EDA

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F3A8D

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

Preview Lab → · Contrast checker → · Palette generator →