#555BD2#555BD2

#555BD2 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.3% C 0.180 H 276.2°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#555BD2
RGB	rgb(85, 91, 210)
HSL	hsl(237, 58%, 58%)
HSV	hsv(237, 60%, 82%)
CMYK	cmyk(59.5%, 56.7%, 0%, 17.6%)
CIE-LAB	lab(44.33, 32.92, -62.35)
CIE-LCH	lch(44.33, 70.51, 297.83°)
OKLab	oklab(53.32% 0.0196 -0.179)
OKLCH	oklch(53.32% 0.18 276.2)
XYZ	xyz(19.1165, 14.0652, 62.6677)
Luminance	0.1407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BD2 #D2CC55

analogous

#5599D2 #555BD2 #8D55D2

triadic

#555BD2 #D2555B #5BD255

tetradic

#555BD2 #D25599 #D2CC55 #55D28D

square

#555BD2 #D25599 #D2CC55 #55D28D

split-complementary

#555BD2 #D28D55 #99D255

monochromatic

#242988 #3137B9 #555BD2 #858ADF #B6B8EC

Accessibility & contrast

On white

5.51

#555BD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#555BD2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BD2

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BD2	#FFFFFF	#000000	##FFFFFF
##555BD2	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED6

Deuteranopia (green-blind)

#0064D0

Tritanopia (blue-blind)

#00778E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555bd2;
/* rgb */ color: rgb(85, 91, 210);
/* oklch */ color: oklch(53.3% 0.180 276.2);

Tailwind

colors: {
  custom: {
    50: '#9089e1',
    500: '#555bd2',
    950: '#000000',
  },
}

SCSS

$custom: #555bd2;
$custom-light: #9089e1;
$custom-dark: #000000;

JSON

{
  "hex": "#555bd2",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 210
  },
  "hsl": {
    "h": 237.12,
    "s": 58.14,
    "l": 57.843
  },
  "oklch": {
    "l": 0.53315,
    "c": 0.18009,
    "h": 276.2
  },
  "luminance": 0.14067
}

Semantic roles & 50–950 ramp

primary

#555BD2

secondary

#DAD8A8

accent

#DA46E1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #555BD2

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

Preview Lab → · Contrast checker → · Palette generator →