#555CDB#555CDB

#555CDB is a mid, vivid blue. Relative luminance 0.147; OKLCH L 54.2% C 0.191 H 275.6°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#555CDB
RGB	rgb(85, 92, 219)
HSL	hsl(237, 65%, 60%)
HSV	hsv(237, 61%, 86%)
CMYK	cmyk(61.2%, 58%, 0%, 14.1%)
CIE-LAB	lab(45.22, 35.27, -66.05)
CIE-LCH	lch(45.22, 74.88, 298.11°)
OKLab	oklab(54.18% 0.0187 -0.1899)
OKLCH	oklch(54.18% 0.191 275.6)
XYZ	xyz(20.3555, 14.6984, 68.7685)
Luminance	0.1470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CDB #DBD455

analogous

#559FDB #555CDB #9155DB

triadic

#555CDB #DB555C #5CDB55

tetradic

#555CDB #DB559F #DBD455 #55DB91

square

#555CDB #DB559F #DBD455 #55DB91

split-complementary

#555CDB #DB9155 #9FDB55

monochromatic

#202696 #2A33C8 #555CDB #888CE6 #BABDF0

Accessibility & contrast

On white

5.33

#555CDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#555CDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CDB

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CDB	#FFFFFF	#000000	##FFFFFF
##555CDB	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DF

Deuteranopia (green-blind)

#0065D8

Tritanopia (blue-blind)

#007B93

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555cdb;
/* rgb */ color: rgb(85, 92, 219);
/* oklch */ color: oklch(54.2% 0.191 275.6);

Tailwind

colors: {
  custom: {
    50: '#928ae7',
    500: '#555cdb',
    950: '#000000',
  },
}

SCSS

$custom: #555cdb;
$custom-light: #928ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#555cdb",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 219
  },
  "hsl": {
    "h": 236.866,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.54183,
    "c": 0.1908,
    "h": 275.6
  },
  "luminance": 0.147
}

Semantic roles & 50–950 ramp

primary

#555CDB

secondary

#E0DDAC

accent

#DF40E8

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555CDB

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

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