#333CAB#333CAB

#333CAB is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.175 H 272.7°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#333CAB
RGB	rgb(51, 60, 171)
HSL	hsl(236, 54%, 44%)
HSV	hsv(236, 70%, 67%)
CMYK	cmyk(70.2%, 64.9%, 0%, 32.9%)
CIE-LAB	lab(31.52, 33.78, -60.47)
CIE-LCH	lch(31.52, 69.27, 299.19°)
OKLab	oklab(42.33% 0.0083 -0.1746)
OKLCH	oklch(42.33% 0.175 272.7)
XYZ	xyz(10.3293, 6.8748, 39.3028)
Luminance	0.0688 (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

#333CAB #ABA233

analogous

#3378AB #333CAB #6633AB

triadic

#333CAB #AB333C #3CAB33

tetradic

#333CAB #AB3378 #ABA233 #33AB66

square

#333CAB #AB3378 #ABA233 #33AB66

split-complementary

#333CAB #AB6633 #78AB33

monochromatic

#171B4D #252B7C #333CAB #5059CB #7F86D9

Accessibility & contrast

On white

8.84

#333CAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#333CAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333CAB

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333CAB	#FFFFFF	#000000	##FFFFFF
##333CAB	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AF

Deuteranopia (green-blind)

#0045A9

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333cab;
/* rgb */ color: rgb(51, 60, 171);
/* oklch */ color: oklch(42.3% 0.175 272.7);

Tailwind

colors: {
  custom: {
    50: '#7b72c5',
    500: '#333cab',
    950: '#000000',
  },
}

SCSS

$custom: #333cab;
$custom-light: #7b72c5;
$custom-dark: #000000;

JSON

{
  "hex": "#333cab",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 171
  },
  "hsl": {
    "h": 235.5,
    "s": 54.054,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42331,
    "c": 0.17482,
    "h": 272.7
  },
  "luminance": 0.06876
}

Semantic roles & 50–950 ramp

primary

#333CAB

secondary

#C2BC78

accent

#D24ADD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333CAB

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

Preview Lab → · Contrast checker → · Palette generator →