#555FDB#555FDB

#555FDB is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.7% C 0.187 H 274.9°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#555FDB
RGB	rgb(85, 95, 219)
HSL	hsl(236, 65%, 60%)
HSV	hsv(236, 61%, 86%)
CMYK	cmyk(61.2%, 56.6%, 0%, 14.1%)
CIE-LAB	lab(45.95, 33.43, -64.87)
CIE-LCH	lch(45.95, 72.98, 297.27°)
OKLab	oklab(54.72% 0.016 -0.1864)
OKLCH	oklch(54.72% 0.187 274.9)
XYZ	xyz(20.6205, 15.2285, 68.8569)
Luminance	0.1523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FDB #DBD155

analogous

#55A2DB #555FDB #8E55DB

triadic

#555FDB #DB555F #5FDB55

tetradic

#555FDB #DB55A2 #DBD155 #55DB8E

square

#555FDB #DB55A2 #DBD155 #55DB8E

split-complementary

#555FDB #DB8E55 #A2DB55

monochromatic

#202996 #2A36C8 #555FDB #888FE6 #BABEF0

Accessibility & contrast

On white

5.19

#555FDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#555FDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FDB

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FDB	#FFFFFF	#000000	##FFFFFF
##555FDB	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073DF

Deuteranopia (green-blind)

#0067D8

Tritanopia (blue-blind)

#007D94

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #555fdb;
/* rgb */ color: rgb(85, 95, 219);
/* oklch */ color: oklch(54.7% 0.187 274.9);

Tailwind

colors: {
  custom: {
    50: '#928ce7',
    500: '#555fdb',
    950: '#000000',
  },
}

SCSS

$custom: #555fdb;
$custom-light: #928ce7;
$custom-dark: #000000;

JSON

{
  "hex": "#555fdb",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 219
  },
  "hsl": {
    "h": 235.522,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.54723,
    "c": 0.18706,
    "h": 274.9
  },
  "luminance": 0.1523
}

Semantic roles & 50–950 ramp

primary

#555FDB

secondary

#E0DCAC

accent

#DB40E8

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #555FDB

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

Preview Lab → · Contrast checker → · Palette generator →