#2F34B3#2F34B3

#2F34B3 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.5% C 0.195 H 272.4°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#2F34B3
RGB	rgb(47, 52, 179)
HSL	hsl(238, 58%, 44%)
HSV	hsv(238, 74%, 70%)
CMYK	cmyk(73.7%, 70.9%, 0%, 29.8%)
CIE-LAB	lab(30.19, 41.07, -67.44)
CIE-LCH	lch(30.19, 78.96, 301.34°)
OKLab	oklab(41.53% 0.0081 -0.1951)
OKLCH	oklch(41.53% 0.195 272.4)
XYZ	xyz(10.5342, 6.3139, 43.3026)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F34B3 #B3AE2F

analogous

#2F76B3 #2F34B3 #6C2FB3

triadic

#2F34B3 #B32F34 #34B32F

tetradic

#2F34B3 #B32F76 #B3AE2F #2FB36C

square

#2F34B3 #B32F76 #B3AE2F #2FB36C

split-complementary

#2F34B3 #B36C2F #76B32F

monochromatic

#161852 #222683 #2F34B3 #4F53D1 #7F83DD

Accessibility & contrast

On white

9.28

#2F34B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2F34B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F34B3

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F34B3	#FFFFFF	#000000	##FFFFFF
##2F34B3	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB7

Deuteranopia (green-blind)

#0041B1

Tritanopia (blue-blind)

#005770

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f34b3;
/* rgb */ color: rgb(47, 52, 179);
/* oklch */ color: oklch(41.5% 0.195 272.4);

Tailwind

colors: {
  custom: {
    50: '#7c6ccb',
    500: '#2f34b3',
    950: '#000000',
  },
}

SCSS

$custom: #2f34b3;
$custom-light: #7c6ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f34b3",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 179
  },
  "hsl": {
    "h": 237.727,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.41531,
    "c": 0.19528,
    "h": 272.4
  },
  "luminance": 0.06315
}

Semantic roles & 50–950 ramp

primary

#2F34B3

secondary

#C6C378

accent

#DC46E2

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F34B3

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

Preview Lab → · Contrast checker → · Palette generator →