#2F30B1#2F30B1

#2F30B1 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.7% C 0.197 H 273.0°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#2F30B1
RGB	rgb(47, 48, 177)
HSL	hsl(240, 58%, 44%)
HSV	hsv(240, 73%, 69%)
CMYK	cmyk(73.4%, 72.9%, 0%, 30.6%)
CIE-LAB	lab(29.14, 42.76, -67.98)
CIE-LCH	lch(29.14, 80.31, 302.17°)
OKLab	oklab(40.72% 0.0105 -0.1967)
OKLCH	oklch(40.72% 0.197 273)
XYZ	xyz(10.1624, 5.8915, 42.1881)
Luminance	0.0589 (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

#2F30B1 #B1B02F

analogous

#2F71B1 #2F30B1 #6F2FB1

triadic

#2F30B1 #B12F30 #30B12F

tetradic

#2F30B1 #B12F71 #B1B02F #2FB16F

square

#2F30B1 #B12F71 #B1B02F #2FB16F

split-complementary

#2F30B1 #B16F2F #71B12F

monochromatic

#151650 #222381 #2F30B1 #4D4ED0 #7E7EDD

Accessibility & contrast

On white

9.64

#2F30B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2F30B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F30B1

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F30B1	#FFFFFF	#000000	##FFFFFF
##2F30B1	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)

#004BB5

Deuteranopia (green-blind)

#003EAF

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2f30b1;
/* rgb */ color: rgb(47, 48, 177);
/* oklch */ color: oklch(40.7% 0.197 273.0);

Tailwind

colors: {
  custom: {
    50: '#7c6aca',
    500: '#2f30b1',
    950: '#000000',
  },
}

SCSS

$custom: #2f30b1;
$custom-light: #7c6aca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f30b1",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 177
  },
  "hsl": {
    "h": 239.538,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.40717,
    "c": 0.19696,
    "h": 273
  },
  "luminance": 0.05893
}

Semantic roles & 50–950 ramp

primary

#2F30B1

secondary

#C5C576

accent

#E047E1

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2F30B1

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

Preview Lab → · Contrast checker → · Palette generator →