#404FB3#404FB3

#404FB3 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.3% C 0.158 H 272.4°. Best body text is #FFFFFF at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#404FB3
RGB	rgb(64, 79, 179)
HSL	hsl(232, 47%, 48%)
HSV	hsv(232, 64%, 70%)
CMYK	cmyk(64.2%, 55.9%, 0%, 29.8%)
CIE-LAB	lab(37.73, 26.33, -55.09)
CIE-LCH	lch(37.73, 61.05, 295.55°)
OKLab	oklab(47.33% 0.0067 -0.1583)
OKLCH	oklch(47.33% 0.158 272.4)
XYZ	xyz(13.0443, 9.9355, 43.8694)
Luminance	0.0994 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FB3 #B3A440

analogous

#4088B3 #404FB3 #6B40B3

triadic

#404FB3 #B3404F #4FB340

tetradic

#404FB3 #B34088 #B3A440 #40B36B

square

#404FB3 #B34088 #B3A440 #40B36B

split-complementary

#404FB3 #B36B40 #88B340

monochromatic

#202759 #303B86 #404FB3 #6774C9 #949DD9

Accessibility & contrast

On white

7.03

#404FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#404FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404FB3

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FB3	#FFFFFF	#000000	##FFFFFF
##404FB3	1.00	7.03	2.99	7.03
#FFFFFF	7.03	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006779

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #404fb3;
/* rgb */ color: rgb(64, 79, 179);
/* oklch */ color: oklch(47.3% 0.158 272.4);

Tailwind

colors: {
  custom: {
    50: '#8180ca',
    500: '#404fb3',
    950: '#000000',
  },
}

SCSS

$custom: #404fb3;
$custom-light: #8180ca;
$custom-dark: #000000;

JSON

{
  "hex": "#404fb3",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 179
  },
  "hsl": {
    "h": 232.174,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47334,
    "c": 0.15844,
    "h": 272.4
  },
  "luminance": 0.09937
}

Semantic roles & 50–950 ramp

primary

#404FB3

secondary

#C4BD8A

accent

#C551D7

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #404FB3

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

Preview Lab → · Contrast checker → · Palette generator →