#555FB7#555FB7

#555FB7 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.2% C 0.137 H 275.7°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#555FB7
RGB	rgb(85, 95, 183)
HSL	hsl(234, 40%, 53%)
HSV	hsv(234, 54%, 72%)
CMYK	cmyk(53.6%, 48.1%, 0%, 28.2%)
CIE-LAB	lab(43.56, 21.55, -47.97)
CIE-LCH	lch(43.56, 52.59, 294.19°)
OKLab	oklab(52.17% 0.0136 -0.1367)
OKLCH	oklch(52.17% 0.137 275.7)
XYZ	xyz(16.3830, 13.5335, 46.5395)
Luminance	0.1353 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FB7 #B7AD55

analogous

#5590B7 #555FB7 #7C55B7

triadic

#555FB7 #B7555F #5FB755

tetradic

#555FB7 #B75590 #B7AD55 #55B77C

square

#555FB7 #B75590 #B7AD55 #55B77C

split-complementary

#555FB7 #B77C55 #90B755

monochromatic

#2B3166 #3E4691 #555FB7 #8087C9 #ABB0DB

Accessibility & contrast

On white

5.66

#555FB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#555FB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FB7

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FB7	#FFFFFF	#000000	##FFFFFF
##555FB7	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366BBA

Deuteranopia (green-blind)

#2B63B5

Tritanopia (blue-blind)

#277282

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #555fb7;
/* rgb */ color: rgb(85, 95, 183);
/* oklch */ color: oklch(52.2% 0.137 275.7);

Tailwind

colors: {
  custom: {
    50: '#8c8ccd',
    500: '#555fb7',
    950: '#000000',
  },
}

SCSS

$custom: #555fb7;
$custom-light: #8c8ccd;
$custom-dark: #000000;

JSON

{
  "hex": "#555fb7",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 183
  },
  "hsl": {
    "h": 233.878,
    "s": 40.496,
    "l": 52.549
  },
  "oklch": {
    "l": 0.52167,
    "c": 0.13736,
    "h": 275.7
  },
  "luminance": 0.13535
}

Semantic roles & 50–950 ramp

primary

#555FB7

secondary

#C9C59F

accent

#C457D0

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0D0C13

muted

#7D7D82

Preview Lab

Preview with #555FB7

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

Preview Lab → · Contrast checker → · Palette generator →