#2F34B1#2F34B1

#2F34B1 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.3% C 0.193 H 272.5°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#2F34B1
RGB	rgb(47, 52, 177)
HSL	hsl(238, 58%, 44%)
HSV	hsv(238, 73%, 69%)
CMYK	cmyk(73.4%, 70.6%, 0%, 30.6%)
CIE-LAB	lab(29.99, 40.39, -66.57)
CIE-LCH	lch(29.99, 77.86, 301.24°)
OKLab	oklab(41.33% 0.0083 -0.1926)
OKLCH	oklch(41.33% 0.193 272.5)
XYZ	xyz(10.3334, 6.2336, 42.2451)
Luminance	0.0624 (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

#2F34B1 #B1AC2F

analogous

#2F75B1 #2F34B1 #6B2FB1

triadic

#2F34B1 #B12F34 #34B12F

tetradic

#2F34B1 #B12F75 #B1AC2F #2FB16B

square

#2F34B1 #B12F75 #B1AC2F #2FB16B

split-complementary

#2F34B1 #B16B2F #75B12F

monochromatic

#151850 #222681 #2F34B1 #4D52D0 #7E81DD

Accessibility & contrast

On white

9.35

#2F34B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#2F34B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F34B1

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F34B1	#FFFFFF	#000000	##FFFFFF
##2F34B1	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB5

Deuteranopia (green-blind)

#0040AF

Tritanopia (blue-blind)

#00576F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f34b1;
/* rgb */ color: rgb(47, 52, 177);
/* oklch */ color: oklch(41.3% 0.193 272.5);

Tailwind

colors: {
  custom: {
    50: '#7c6cc9',
    500: '#2f34b1',
    950: '#000000',
  },
}

SCSS

$custom: #2f34b1;
$custom-light: #7c6cc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f34b1",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 177
  },
  "hsl": {
    "h": 237.692,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41331,
    "c": 0.19276,
    "h": 272.5
  },
  "luminance": 0.06235
}

Semantic roles & 50–950 ramp

primary

#2F34B1

secondary

#C5C276

accent

#DB47E1

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F34B1

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

Preview Lab → · Contrast checker → · Palette generator →