#556EDD#556EDD

#556EDD is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.7% C 0.171 H 270.7°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#556EDD
RGB	rgb(85, 110, 221)
HSL	hsl(229, 67%, 60%)
HSV	hsv(229, 62%, 87%)
CMYK	cmyk(61.5%, 50.2%, 0%, 13.3%)
CIE-LAB	lab(49.86, 24.82, -59.67)
CIE-LCH	lch(49.86, 64.63, 292.59°)
OKLab	oklab(57.7% 0.0019 -0.1709)
OKLCH	oklch(57.7% 0.171 270.7)
XYZ	xyz(22.3690, 18.3017, 70.7464)
Luminance	0.1830 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556EDD #DDC455

analogous

#55B2DD #556EDD #8055DD

triadic

#556EDD #DD556E #6EDD55

tetradic

#556EDD #DD55B2 #DDC455 #55DD80

square

#556EDD #DD55B2 #DDC455 #55DD80

split-complementary

#556EDD #DD8055 #B2DD55

monochromatic

#1F3599 #2947CC #556EDD #8899E7 #BBC5F1

Accessibility & contrast

On white

4.51

#556EDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#556EDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #556EDD

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556EDD	#FFFFFF	#000000	##000000
##556EDD	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#307DE1

Deuteranopia (green-blind)

#0971DB

Tritanopia (blue-blind)

#00889B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #556edd;
/* rgb */ color: rgb(85, 110, 221);
/* oklch */ color: oklch(57.7% 0.171 270.7);

Tailwind

colors: {
  custom: {
    50: '#9197e8',
    500: '#556edd',
    950: '#000000',
  },
}

SCSS

$custom: #556edd;
$custom-light: #9197e8;
$custom-dark: #000000;

JSON

{
  "hex": "#556edd",
  "rgb": {
    "r": 85,
    "g": 110,
    "b": 221
  },
  "hsl": {
    "h": 228.971,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.57704,
    "c": 0.17094,
    "h": 270.7
  },
  "luminance": 0.18304
}

Semantic roles & 50–950 ramp

primary

#556EDD

secondary

#E1D7AD

accent

#CA3EEA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556EDD

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

Preview Lab → · Contrast checker → · Palette generator →