#2F34A8#2F34A8

#2F34A8 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.4% C 0.181 H 273.0°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#2F34A8
RGB	rgb(47, 52, 168)
HSL	hsl(238, 56%, 42%)
HSV	hsv(238, 72%, 66%)
CMYK	cmyk(72%, 69%, 0%, 34.1%)
CIE-LAB	lab(29.12, 37.26, -62.61)
CIE-LCH	lch(29.12, 72.86, 300.76°)
OKLab	oklab(40.44% 0.0095 -0.181)
OKLCH	oklch(40.44% 0.181 273)
XYZ	xyz(9.4658, 5.8865, 37.6756)
Luminance	0.0589 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.61

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F34A8 #A8A32F

analogous

#2F70A8 #2F34A8 #672FA8

triadic

#2F34A8 #A82F34 #34A82F

tetradic

#2F34A8 #A82F70 #A8A32F #2FA867

square

#2F34A8 #A82F70 #A8A32F #2FA867

split-complementary

#2F34A8 #A8672F #70A82F

monochromatic

#141648 #222578 #2F34A8 #484ECC #787CD9

Accessibility & contrast

On white

9.64

#2F34A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2F34A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F34A8

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F34A8	#FFFFFF	#000000	##FFFFFF
##2F34A8	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAC

Deuteranopia (green-blind)

#003FA6

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2f34a8;
/* rgb */ color: rgb(47, 52, 168);
/* oklch */ color: oklch(40.4% 0.181 273.0);

Tailwind

colors: {
  custom: {
    50: '#796cc3',
    500: '#2f34a8',
    950: '#000000',
  },
}

SCSS

$custom: #2f34a8;
$custom-light: #796cc3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f34a8",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 168
  },
  "hsl": {
    "h": 237.521,
    "s": 56.279,
    "l": 42.157
  },
  "oklch": {
    "l": 0.4044,
    "c": 0.18126,
    "h": 273
  },
  "luminance": 0.05887
}

Semantic roles & 50–950 ramp

primary

#2F34A8

secondary

#C1BE71

accent

#D948E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F34A8

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

Preview Lab → · Contrast checker → · Palette generator →