#2F38B1#2F38B1

#2F38B1 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.0% C 0.188 H 271.8°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#2F38B1
RGB	rgb(47, 56, 177)
HSL	hsl(236, 58%, 44%)
HSV	hsv(236, 73%, 69%)
CMYK	cmyk(73.4%, 68.4%, 0%, 30.6%)
CIE-LAB	lab(30.89, 37.94, -65.09)
CIE-LCH	lch(30.89, 75.34, 300.24°)
OKLab	oklab(41.98% 0.006 -0.1883)
OKLCH	oklch(41.98% 0.188 271.8)
XYZ	xyz(10.5196, 6.6059, 42.3071)
Luminance	0.0661 (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

#2F38B1 #B1A82F

analogous

#2F79B1 #2F38B1 #672FB1

triadic

#2F38B1 #B12F38 #38B12F

tetradic

#2F38B1 #B12F79 #B1A82F #2FB167

square

#2F38B1 #B12F79 #B1A82F #2FB167

split-complementary

#2F38B1 #B1672F #79B12F

monochromatic

#151950 #222981 #2F38B1 #4D56D0 #7E84DD

Accessibility & contrast

On white

9.05

#2F38B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#2F38B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F38B1

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F38B1	#FFFFFF	#000000	##FFFFFF
##2F38B1	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB5

Deuteranopia (green-blind)

#0043AF

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2f38b1;
/* rgb */ color: rgb(47, 56, 177);
/* oklch */ color: oklch(42.0% 0.188 271.8);

Tailwind

colors: {
  custom: {
    50: '#7b6fc9',
    500: '#2f38b1',
    950: '#000000',
  },
}

SCSS

$custom: #2f38b1;
$custom-light: #7b6fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f38b1",
  "rgb": {
    "r": 47,
    "g": 56,
    "b": 177
  },
  "hsl": {
    "h": 235.846,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41979,
    "c": 0.18836,
    "h": 271.8
  },
  "luminance": 0.06607
}

Semantic roles & 50–950 ramp

primary

#2F38B1

secondary

#C5C076

accent

#D747E1

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F38B1

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

Preview Lab → · Contrast checker → · Palette generator →