#4033B5#4033B5

#4033B5 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.7% C 0.195 H 278.7°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#4033B5
RGB	rgb(64, 51, 181)
HSL	hsl(246, 56%, 45%)
HSV	hsv(246, 72%, 71%)
CMYK	cmyk(64.6%, 71.8%, 0%, 29%)
CIE-LAB	lab(31.33, 44.26, -66.71)
CIE-LCH	lch(31.33, 80.06, 303.56°)
OKLab	oklab(42.71% 0.0295 -0.1925)
OKLCH	oklch(42.71% 0.195 278.7)
XYZ	xyz(11.6360, 6.7929, 44.4051)
Luminance	0.0679 (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

#4033B5 #A8B533

analogous

#3367B5 #4033B5 #8133B5

triadic

#4033B5 #B54033 #33B540

tetradic

#4033B5 #B53367 #A8B533 #33B581

square

#4033B5 #B53367 #A8B533 #33B581

split-complementary

#4033B5 #B58133 #67B533

monochromatic

#1E1856 #2F2685 #4033B5 #6256CF #8E86DD

Accessibility & contrast

On white

8.90

#4033B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#4033B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4033B5

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4033B5	#FFFFFF	#000000	##FFFFFF
##4033B5	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB9

Deuteranopia (green-blind)

#0044B3

Tritanopia (blue-blind)

#005770

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4033b5;
/* rgb */ color: rgb(64, 51, 181);
/* oklch */ color: oklch(42.7% 0.195 278.7);

Tailwind

colors: {
  custom: {
    50: '#846dcc',
    500: '#4033b5',
    950: '#000000',
  },
}

SCSS

$custom: #4033b5;
$custom-light: #846dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4033b5",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 181
  },
  "hsl": {
    "h": 246,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42707,
    "c": 0.19478,
    "h": 278.7
  },
  "luminance": 0.06794
}

Semantic roles & 50–950 ramp

primary

#4033B5

secondary

#BFC67D

accent

#DF48D0

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4033B5

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

Preview Lab → · Contrast checker → · Palette generator →