#2F33AB#2F33AB

#2F33AB is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.6% C 0.186 H 273.0°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#2F33AB
RGB	rgb(47, 51, 171)
HSL	hsl(238, 57%, 43%)
HSV	hsv(238, 73%, 67%)
CMYK	cmyk(72.5%, 70.2%, 0%, 32.9%)
CIE-LAB	lab(29.19, 38.92, -64.31)
CIE-LCH	lch(29.19, 75.17, 301.18°)
OKLab	oklab(40.57% 0.0097 -0.186)
OKLCH	oklch(40.57% 0.186 273)
XYZ	xyz(9.7043, 5.9113, 39.1497)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.35

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F33AB #ABA72F

analogous

#2F71AB #2F33AB #692FAB

triadic

#2F33AB #AB2F33 #33AB2F

tetradic

#2F33AB #AB2F71 #ABA72F #2FAB69

square

#2F33AB #AB2F71 #ABA72F #2FAB69

split-complementary

#2F33AB #AB692F #71AB2F

monochromatic

#15164B #22257B #2F33AB #4A4ECD #7A7DDA

Accessibility & contrast

On white

9.62

#2F33AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2F33AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F33AB

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F33AB	#FFFFFF	#000000	##FFFFFF
##2F33AB	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAF

Deuteranopia (green-blind)

#003FA9

Tritanopia (blue-blind)

#00546B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2f33ab;
/* rgb */ color: rgb(47, 51, 171);
/* oklch */ color: oklch(40.6% 0.186 273.0);

Tailwind

colors: {
  custom: {
    50: '#7a6bc5',
    500: '#2f33ab',
    950: '#000000',
  },
}

SCSS

$custom: #2f33ab;
$custom-light: #7a6bc5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f33ab",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 171
  },
  "hsl": {
    "h": 238.065,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40573,
    "c": 0.18622,
    "h": 273
  },
  "luminance": 0.05912
}

Semantic roles & 50–950 ramp

primary

#2F33AB

secondary

#C3C073

accent

#DB48E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F33AB

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

Preview Lab → · Contrast checker → · Palette generator →