#404DBC#404DBC

#404DBC is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.7% C 0.173 H 272.9°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#404DBC
RGB	rgb(64, 77, 188)
HSL	hsl(234, 49%, 49%)
HSV	hsv(234, 66%, 74%)
CMYK	cmyk(66%, 59%, 0%, 26.3%)
CIE-LAB	lab(37.89, 30.77, -60.11)
CIE-LCH	lch(37.89, 67.53, 297.11°)
OKLab	oklab(47.67% 0.0087 -0.1731)
OKLCH	oklch(47.67% 0.173 272.9)
XYZ	xyz(13.8423, 10.0273, 48.7732)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DBC #BCAF40

analogous

#408BBC #404DBC #7140BC

triadic

#404DBC #BC404D #4DBC40

tetradic

#404DBC #BC408B #BCAF40 #40BC71

square

#404DBC #BC408B #BCAF40 #40BC71

split-complementary

#404DBC #BC7140 #8BBC40

monochromatic

#212861 #303A8E #404DBC #6C76CD #9AA1DD

Accessibility & contrast

On white

6.99

#404DBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#404DBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404DBC

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DBC	#FFFFFF	#000000	##FFFFFF
##404DBC	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC0

Deuteranopia (green-blind)

#0054BA

Tritanopia (blue-blind)

#00687D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #404dbc;
/* rgb */ color: rgb(64, 77, 188);
/* oklch */ color: oklch(47.7% 0.173 272.9);

Tailwind

colors: {
  custom: {
    50: '#837ed1',
    500: '#404dbc',
    950: '#000000',
  },
}

SCSS

$custom: #404dbc;
$custom-light: #837ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#404dbc",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 188
  },
  "hsl": {
    "h": 233.71,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.4767,
    "c": 0.17332,
    "h": 272.9
  },
  "luminance": 0.10029
}

Semantic roles & 50–950 ramp

primary

#404DBC

secondary

#C9C38F

accent

#CA4FD9

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #404DBC

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

Preview Lab → · Contrast checker → · Palette generator →