#434FBB#434FBB

#434FBB is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.1% C 0.169 H 273.5°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#434FBB
RGB	rgb(67, 79, 187)
HSL	hsl(234, 47%, 50%)
HSV	hsv(234, 64%, 73%)
CMYK	cmyk(64.2%, 57.8%, 0%, 26.7%)
CIE-LAB	lab(38.50, 29.62, -58.52)
CIE-LCH	lch(38.50, 65.59, 296.85°)
OKLab	oklab(48.15% 0.0102 -0.1683)
OKLCH	oklch(48.15% 0.169 273.5)
XYZ	xyz(14.0774, 10.3719, 48.2642)
Luminance	0.1037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#434FBB #BBAF43

analogous

#438BBB #434FBB #7343BB

triadic

#434FBB #BB434F #4FBB43

tetradic

#434FBB #BB438B #BBAF43 #43BB73

square

#434FBB #BB438B #BBAF43 #43BB73

split-complementary

#434FBB #BB7343 #8BBB43

monochromatic

#232961 #333C8E #434FBB #7079CC #9DA3DC

Accessibility & contrast

On white

6.83

#434FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#434FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #434FBB

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##434FBB	#FFFFFF	#000000	##FFFFFF
##434FBB	1.00	6.83	3.07	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BF

Deuteranopia (green-blind)

#0055B9

Tritanopia (blue-blind)

#00697D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #434fbb;
/* rgb */ color: rgb(67, 79, 187);
/* oklch */ color: oklch(48.1% 0.169 273.5);

Tailwind

colors: {
  custom: {
    50: '#8480d0',
    500: '#434fbb',
    950: '#000000',
  },
}

SCSS

$custom: #434fbb;
$custom-light: #8480d0;
$custom-dark: #000000;

JSON

{
  "hex": "#434fbb",
  "rgb": {
    "r": 67,
    "g": 79,
    "b": 187
  },
  "hsl": {
    "h": 234,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.48148,
    "c": 0.16865,
    "h": 273.5
  },
  "luminance": 0.10373
}

Semantic roles & 50–950 ramp

primary

#434FBB

secondary

#C8C392

accent

#C951D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #434FBB

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

Preview Lab → · Contrast checker → · Palette generator →