#2F33A1#2F33A1

#2F33A1 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.6% C 0.173 H 273.6°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#2F33A1
RGB	rgb(47, 51, 161)
HSL	hsl(238, 55%, 41%)
HSV	hsv(238, 71%, 63%)
CMYK	cmyk(70.8%, 68.3%, 0%, 36.9%)
CIE-LAB	lab(28.23, 35.43, -59.85)
CIE-LCH	lch(28.23, 69.55, 300.62°)
OKLab	oklab(39.59% 0.0109 -0.1729)
OKLCH	oklch(39.59% 0.173 273.6)
XYZ	xyz(8.7870, 5.5444, 34.3184)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F33A1 #A19D2F

analogous

#2F6CA1 #2F33A1 #642FA1

triadic

#2F33A1 #A12F33 #33A12F

tetradic

#2F33A1 #A12F6C #A19D2F #2FA164

square

#2F33A1 #A12F6C #A19D2F #2FA164

split-complementary

#2F33A1 #A1642F #6CA12F

monochromatic

#131542 #212472 #2F33A1 #4549C9 #7477D6

Accessibility & contrast

On white

9.96

#2F33A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2F33A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F33A1

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F33A1	#FFFFFF	#000000	##FFFFFF
##2F33A1	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A4

Deuteranopia (green-blind)

#003D9F

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f33a1;
/* rgb */ color: rgb(47, 51, 161);
/* oklch */ color: oklch(39.6% 0.173 273.6);

Tailwind

colors: {
  custom: {
    50: '#786bbe',
    500: '#2f33a1',
    950: '#000000',
  },
}

SCSS

$custom: #2f33a1;
$custom-light: #786bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#2f33a1",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 161
  },
  "hsl": {
    "h": 237.895,
    "s": 54.808,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39593,
    "c": 0.17327,
    "h": 273.6
  },
  "luminance": 0.05545
}

Semantic roles & 50–950 ramp

primary

#2F33A1

secondary

#BEBB6E

accent

#D94ADE

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2F33A1

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

Preview Lab → · Contrast checker → · Palette generator →