#2F33B4#2F33B4

#2F33B4 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.5% C 0.198 H 272.4°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#2F33B4
RGB	rgb(47, 51, 180)
HSL	hsl(238, 59%, 45%)
HSV	hsv(238, 74%, 71%)
CMYK	cmyk(73.9%, 71.7%, 0%, 29.4%)
CIE-LAB	lab(30.07, 42.01, -68.23)
CIE-LCH	lch(30.07, 80.12, 301.62°)
OKLab	oklab(41.48% 0.0084 -0.1974)
OKLCH	oklch(41.48% 0.198 272.4)
XYZ	xyz(10.5916, 6.2662, 43.8225)
Luminance	0.0627 (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

#2F33B4 #B4B02F

analogous

#2F76B4 #2F33B4 #6D2FB4

triadic

#2F33B4 #B42F33 #33B42F

tetradic

#2F33B4 #B42F76 #B4B02F #2FB46D

square

#2F33B4 #B42F76 #B4B02F #2FB46D

split-complementary

#2F33B4 #B46D2F #76B42F

monochromatic

#161853 #222583 #2F33B4 #4F53D1 #8082DE

Accessibility & contrast

On white

9.32

#2F33B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#2F33B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F33B4

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F33B4	#FFFFFF	#000000	##FFFFFF
##2F33B4	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB8

Deuteranopia (green-blind)

#0040B2

Tritanopia (blue-blind)

#005770

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f33b4;
/* rgb */ color: rgb(47, 51, 180);
/* oklch */ color: oklch(41.5% 0.198 272.4);

Tailwind

colors: {
  custom: {
    50: '#7c6ccc',
    500: '#2f33b4',
    950: '#000000',
  },
}

SCSS

$custom: #2f33b4;
$custom-light: #7c6ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f33b4",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 180
  },
  "hsl": {
    "h": 238.195,
    "s": 58.59,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41477,
    "c": 0.19758,
    "h": 272.4
  },
  "luminance": 0.06267
}

Semantic roles & 50–950 ramp

primary

#2F33B4

secondary

#C7C478

accent

#DD46E2

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F33B4

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

Preview Lab → · Contrast checker → · Palette generator →