#2F34A1#2F34A1

#2F34A1 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.8% C 0.172 H 273.4°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#2F34A1
RGB	rgb(47, 52, 161)
HSL	hsl(237, 55%, 41%)
HSV	hsv(237, 71%, 63%)
CMYK	cmyk(70.8%, 67.7%, 0%, 36.9%)
CIE-LAB	lab(28.47, 34.80, -59.46)
CIE-LCH	lch(28.47, 68.90, 300.34°)
OKLab	oklab(39.76% 0.0102 -0.1718)
OKLCH	oklch(39.76% 0.172 273.4)
XYZ	xyz(8.8312, 5.6327, 34.3331)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F34A1 #A19C2F

analogous

#2F6DA1 #2F34A1 #632FA1

triadic

#2F34A1 #A12F34 #34A12F

tetradic

#2F34A1 #A12F6D #A19C2F #2FA163

square

#2F34A1 #A12F6D #A19C2F #2FA163

split-complementary

#2F34A1 #A1632F #6DA12F

monochromatic

#131542 #212572 #2F34A1 #454AC9 #7478D6

Accessibility & contrast

On white

9.87

#2F34A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2F34A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F34A1

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F34A1	#FFFFFF	#000000	##FFFFFF
##2F34A1	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A4

Deuteranopia (green-blind)

#003E9F

Tritanopia (blue-blind)

#005166

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f34a1;
/* rgb */ color: rgb(47, 52, 161);
/* oklch */ color: oklch(39.8% 0.172 273.4);

Tailwind

colors: {
  custom: {
    50: '#786cbe',
    500: '#2f34a1',
    950: '#000000',
  },
}

SCSS

$custom: #2f34a1;
$custom-light: #786cbe;
$custom-dark: #000000;

JSON

{
  "hex": "#2f34a1",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 161
  },
  "hsl": {
    "h": 237.368,
    "s": 54.808,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39762,
    "c": 0.17211,
    "h": 273.4
  },
  "luminance": 0.05634
}

Semantic roles & 50–950 ramp

primary

#2F34A1

secondary

#BEBB6E

accent

#D84ADE

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F34A1

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

Preview Lab → · Contrast checker → · Palette generator →