#333DA5#333DA5

#333DA5 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.0% C 0.166 H 272.7°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#333DA5
RGB	rgb(51, 61, 165)
HSL	hsl(235, 53%, 42%)
HSV	hsv(235, 69%, 65%)
CMYK	cmyk(69.1%, 63%, 0%, 35.3%)
CIE-LAB	lab(31.25, 30.99, -57.32)
CIE-LCH	lch(31.25, 65.16, 298.40°)
OKLab	oklab(41.97% 0.0079 -0.1654)
OKLCH	oklch(41.97% 0.166 272.7)
XYZ	xyz(9.8232, 6.7570, 36.3766)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333DA5 #A59B33

analogous

#3376A5 #333DA5 #6233A5

triadic

#333DA5 #A5333D #3DA533

tetradic

#333DA5 #A53376 #A59B33 #33A562

square

#333DA5 #A53376 #A59B33 #33A562

split-complementary

#333DA5 #A56233 #76A533

monochromatic

#161A48 #252C76 #333DA5 #4D58C8 #7C84D6

Accessibility & contrast

On white

8.93

#333DA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#333DA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333DA5

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333DA5	#FFFFFF	#000000	##FFFFFF
##333DA5	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA8

Deuteranopia (green-blind)

#0044A3

Tritanopia (blue-blind)

#00576B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333da5;
/* rgb */ color: rgb(51, 61, 165);
/* oklch */ color: oklch(42.0% 0.166 272.7);

Tailwind

colors: {
  custom: {
    50: '#7a72c1',
    500: '#333da5',
    950: '#000000',
  },
}

SCSS

$custom: #333da5;
$custom-light: #7a72c1;
$custom-dark: #000000;

JSON

{
  "hex": "#333da5",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 165
  },
  "hsl": {
    "h": 234.737,
    "s": 52.778,
    "l": 42.353
  },
  "oklch": {
    "l": 0.4197,
    "c": 0.16555,
    "h": 272.7
  },
  "luminance": 0.06758
}

Semantic roles & 50–950 ramp

primary

#333DA5

secondary

#BFB975

accent

#D04CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333DA5

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

Preview Lab → · Contrast checker → · Palette generator →