#333CB6#333CB6

#333CB6 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.4% C 0.189 H 272.3°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#333CB6
RGB	rgb(51, 60, 182)
HSL	hsl(236, 56%, 46%)
HSV	hsv(236, 72%, 71%)
CMYK	cmyk(72%, 67%, 0%, 28.6%)
CIE-LAB	lab(32.51, 37.66, -65.41)
CIE-LCH	lch(32.51, 75.47, 299.93°)
OKLab	oklab(43.35% 0.0074 -0.1891)
OKLCH	oklch(43.35% 0.189 272.3)
XYZ	xyz(11.4218, 7.3118, 45.0563)
Luminance	0.0731 (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

#333CB6 #B6AD33

analogous

#337DB6 #333CB6 #6B33B6

triadic

#333CB6 #B6333C #3CB633

tetradic

#333CB6 #B6337D #B6AD33 #33B66B

square

#333CB6 #B6337D #B6AD33 #33B66B

split-complementary

#333CB6 #B66B33 #7DB633

monochromatic

#181C56 #262C86 #333CB6 #565FD0 #868CDD

Accessibility & contrast

On white

8.53

#333CB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#333CB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333CB6

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333CB6	#FFFFFF	#000000	##FFFFFF
##333CB6	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BA

Deuteranopia (green-blind)

#0046B4

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #333cb6;
/* rgb */ color: rgb(51, 60, 182);
/* oklch */ color: oklch(43.4% 0.189 272.3);

Tailwind

colors: {
  custom: {
    50: '#7e72cd',
    500: '#333cb6',
    950: '#000000',
  },
}

SCSS

$custom: #333cb6;
$custom-light: #7e72cd;
$custom-dark: #000000;

JSON

{
  "hex": "#333cb6",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 182
  },
  "hsl": {
    "h": 235.878,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.43353,
    "c": 0.18922,
    "h": 272.3
  },
  "luminance": 0.07313
}

Semantic roles & 50–950 ramp

primary

#333CB6

secondary

#C7C27E

accent

#D548E0

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #333CB6

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

Preview Lab → · Contrast checker → · Palette generator →