#33388B#33388B

#33388B is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.8% C 0.136 H 275.5°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#33388B
RGB	rgb(51, 56, 139)
HSL	hsl(237, 46%, 37%)
HSV	hsv(237, 63%, 55%)
CMYK	cmyk(63.3%, 59.7%, 0%, 45.5%)
CIE-LAB	lab(27.83, 24.93, -47.01)
CIE-LCH	lch(27.83, 53.21, 297.94°)
OKLab	oklab(38.78% 0.0129 -0.1351)
OKLCH	oklch(38.78% 0.136 275.5)
XYZ	xyz(7.4381, 5.3956, 25.0706)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33388B #8B8633

analogous

#33648B #33388B #5A338B

triadic

#33388B #8B3338 #388B33

tetradic

#33388B #8B3364 #8B8633 #338B5A

square

#33388B #8B3364 #8B8633 #338B5A

split-complementary

#33388B #8B5A33 #648B33

monochromatic

#121431 #23265E #33388B #434AB8 #6E74CA

Accessibility & contrast

On white

10.10

#33388B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#33388B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33388B

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33388B	#FFFFFF	#000000	##FFFFFF
##33388B	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468E

Deuteranopia (green-blind)

#003E89

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #33388b;
/* rgb */ color: rgb(51, 56, 139);
/* oklch */ color: oklch(38.8% 0.136 275.5);

Tailwind

colors: {
  custom: {
    50: '#756eae',
    500: '#33388b',
    950: '#000000',
  },
}

SCSS

$custom: #33388b;
$custom-light: #756eae;
$custom-dark: #000000;

JSON

{
  "hex": "#33388b",
  "rgb": {
    "r": 51,
    "g": 56,
    "b": 139
  },
  "hsl": {
    "h": 236.591,
    "s": 46.316,
    "l": 37.255
  },
  "oklch": {
    "l": 0.38781,
    "c": 0.13575,
    "h": 275.5
  },
  "luminance": 0.05396
}

Semantic roles & 50–950 ramp

primary

#33388B

secondary

#B2AE68

accent

#CE52D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #33388B

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

Preview Lab → · Contrast checker → · Palette generator →