#2F3397#2F3397

#2F3397 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.6% C 0.160 H 274.3°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#2F3397
RGB	rgb(47, 51, 151)
HSL	hsl(238, 53%, 39%)
HSV	hsv(238, 69%, 59%)
CMYK	cmyk(68.9%, 66.2%, 0%, 40.8%)
CIE-LAB	lab(27.31, 31.88, -55.26)
CIE-LCH	lch(27.31, 63.80, 299.98°)
OKLab	oklab(38.64% 0.0119 -0.1595)
OKLCH	oklch(38.64% 0.16 274.3)
XYZ	xyz(7.9402, 5.2056, 29.8585)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3397 #97932F

analogous

#2F6797 #2F3397 #5F2F97

triadic

#2F3397 #972F33 #33972F

tetradic

#2F3397 #972F67 #97932F #2F975F

square

#2F3397 #972F67 #97932F #2F975F

split-complementary

#2F3397 #975F2F #67972F

monochromatic

#12133A #202368 #2F3397 #4045C3 #6E72D2

Accessibility & contrast

On white

10.29

#2F3397 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2F3397 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3397

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3397	#FFFFFF	#000000	##FFFFFF
##2F3397	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459A

Deuteranopia (green-blind)

#003C95

Tritanopia (blue-blind)

#004D60

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2f3397;
/* rgb */ color: rgb(47, 51, 151);
/* oklch */ color: oklch(38.6% 0.160 274.3);

Tailwind

colors: {
  custom: {
    50: '#766bb7',
    500: '#2f3397',
    950: '#000000',
  },
}

SCSS

$custom: #2f3397;
$custom-light: #766bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3397",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 151
  },
  "hsl": {
    "h": 237.692,
    "s": 52.525,
    "l": 38.824
  },
  "oklch": {
    "l": 0.38642,
    "c": 0.15994,
    "h": 274.3
  },
  "luminance": 0.05206
}

Semantic roles & 50–950 ramp

primary

#2F3397

secondary

#B9B668

accent

#D64CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #2F3397

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

Preview Lab → · Contrast checker → · Palette generator →