#333C8A#333C8A

#333C8A is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.5% C 0.129 H 274.0°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#333C8A
RGB	rgb(51, 60, 138)
HSL	hsl(234, 46%, 37%)
HSV	hsv(234, 63%, 54%)
CMYK	cmyk(63%, 56.5%, 0%, 45.9%)
CIE-LAB	lab(28.82, 21.89, -44.78)
CIE-LCH	lch(28.82, 49.85, 296.05°)
OKLab	oklab(39.5% 0.0089 -0.1285)
OKLCH	oklch(39.5% 0.129 274)
XYZ	xyz(7.5670, 5.7699, 24.7548)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333C8A #8A8133

analogous

#33688A #333C8A #56338A

triadic

#333C8A #8A333C #3C8A33

tetradic

#333C8A #8A3368 #8A8133 #338A56

square

#333C8A #8A3368 #8A8133 #338A56

split-complementary

#333C8A #8A5633 #688A33

monochromatic

#121531 #22295D #333C8A #444FB7 #6E77C9

Accessibility & contrast

On white

9.75

#333C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#333C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333C8A

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333C8A	#FFFFFF	#000000	##FFFFFF
##333C8A	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02488D

Deuteranopia (green-blind)

#004088

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #333c8a;
/* rgb */ color: rgb(51, 60, 138);
/* oklch */ color: oklch(39.5% 0.129 274.0);

Tailwind

colors: {
  custom: {
    50: '#7471ad',
    500: '#333c8a',
    950: '#000000',
  },
}

SCSS

$custom: #333c8a;
$custom-light: #7471ad;
$custom-dark: #000000;

JSON

{
  "hex": "#333c8a",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 138
  },
  "hsl": {
    "h": 233.793,
    "s": 46.032,
    "l": 37.059
  },
  "oklch": {
    "l": 0.39495,
    "c": 0.12885,
    "h": 274
  },
  "luminance": 0.05771
}

Semantic roles & 50–950 ramp

primary

#333C8A

secondary

#B1AA67

accent

#C852D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #333C8A

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

Preview Lab → · Contrast checker → · Palette generator →