#555ACE#555ACE

#555ACE is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.8% C 0.176 H 276.7°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#555ACE
RGB	rgb(85, 90, 206)
HSL	hsl(238, 55%, 57%)
HSV	hsv(238, 59%, 81%)
CMYK	cmyk(58.7%, 56.3%, 0%, 19.2%)
CIE-LAB	lab(43.80, 32.22, -60.91)
CIE-LCH	lch(43.80, 68.91, 297.88°)
OKLab	oklab(52.83% 0.0205 -0.1748)
OKLCH	oklch(52.83% 0.176 276.7)
XYZ	xyz(18.5395, 13.6985, 60.0477)
Luminance	0.1370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555ACE #CEC955

analogous

#5596CE #555ACE #8D55CE

triadic

#555ACE #CE555A #5ACE55

tetradic

#555ACE #CE5596 #CEC955 #55CE8D

square

#555ACE #CE5596 #CEC955 #55CE8D

split-complementary

#555ACE #CE8D55 #96CE55

monochromatic

#262A83 #3339B2 #555ACE #8588DC #B4B6E9

Accessibility & contrast

On white

5.61

#555ACE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#555ACE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555ACE

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555ACE	#FFFFFF	#000000	##FFFFFF
##555ACE	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD2

Deuteranopia (green-blind)

#0063CC

Tritanopia (blue-blind)

#00758B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #555ace;
/* rgb */ color: rgb(85, 90, 206);
/* oklch */ color: oklch(52.8% 0.176 276.7);

Tailwind

colors: {
  custom: {
    50: '#9088de',
    500: '#555ace',
    950: '#000000',
  },
}

SCSS

$custom: #555ace;
$custom-light: #9088de;
$custom-dark: #000000;

JSON

{
  "hex": "#555ace",
  "rgb": {
    "r": 85,
    "g": 90,
    "b": 206
  },
  "hsl": {
    "h": 237.521,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.52832,
    "c": 0.17598,
    "h": 276.7
  },
  "luminance": 0.137
}

Semantic roles & 50–950 ramp

primary

#555ACE

secondary

#D8D6A7

accent

#D849DF

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #555ACE

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

Preview Lab → · Contrast checker → · Palette generator →