#333EBB#333EBB

#333EBB is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.2% C 0.193 H 271.7°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#333EBB
RGB	rgb(51, 62, 187)
HSL	hsl(235, 57%, 47%)
HSV	hsv(235, 73%, 73%)
CMYK	cmyk(72.7%, 66.8%, 0%, 26.7%)
CIE-LAB	lab(33.43, 38.17, -66.85)
CIE-LCH	lch(33.43, 76.98, 299.72°)
OKLab	oklab(44.16% 0.0057 -0.1933)
OKLCH	oklch(44.16% 0.193 271.7)
XYZ	xyz(12.0545, 7.7357, 47.8619)
Luminance	0.0774 (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

#333EBB #BBB033

analogous

#3382BB #333EBB #6C33BB

triadic

#333EBB #BB333E #3EBB33

tetradic

#333EBB #BB3382 #BBB033 #33BB6C

square

#333EBB #BB3382 #BBB033 #33BB6C

split-complementary

#333EBB #BB6C33 #82BB33

monochromatic

#191E5B #262E8B #333EBB #5963D2 #8990DF

Accessibility & contrast

On white

8.24

#333EBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#333EBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EBB

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EBB	#FFFFFF	#000000	##FFFFFF
##333EBB	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BF

Deuteranopia (green-blind)

#0048B9

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #333ebb;
/* rgb */ color: rgb(51, 62, 187);
/* oklch */ color: oklch(44.2% 0.193 271.7);

Tailwind

colors: {
  custom: {
    50: '#7f73d1',
    500: '#333ebb',
    950: '#000000',
  },
}

SCSS

$custom: #333ebb;
$custom-light: #7f73d1;
$custom-dark: #000000;

JSON

{
  "hex": "#333ebb",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 187
  },
  "hsl": {
    "h": 235.147,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44161,
    "c": 0.19337,
    "h": 271.7
  },
  "luminance": 0.07737
}

Semantic roles & 50–950 ramp

primary

#333EBB

secondary

#C9C381

accent

#D447E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #333EBB

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

Preview Lab → · Contrast checker → · Palette generator →