#556DD7#556DD7

#556DD7 is a mid, vivid blue. Relative luminance 0.178; OKLCH L 57.1% C 0.164 H 270.8°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#556DD7
RGB	rgb(85, 109, 215)
HSL	hsl(229, 62%, 59%)
HSV	hsv(229, 60%, 84%)
CMYK	cmyk(60.5%, 49.3%, 0%, 15.7%)
CIE-LAB	lab(49.22, 23.42, -57.30)
CIE-LCH	lch(49.22, 61.91, 292.23°)
OKLab	oklab(57.1% 0.0023 -0.164)
OKLCH	oklch(57.1% 0.164 270.8)
XYZ	xyz(21.4766, 17.7731, 66.5756)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#556DD7 #D7BF55

analogous

#55AED7 #556DD7 #7E55D7

triadic

#556DD7 #D7556D #6DD755

tetradic

#556DD7 #D755AE #D7BF55 #55D77E

square

#556DD7 #D755AE #D7BF55 #55D77E

split-complementary

#556DD7 #D77E55 #AED755

monochromatic

#223690 #2D49C1 #556DD7 #8798E3 #B8C2EE

Accessibility & contrast

On white

4.61

#556DD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#556DD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #556DD7

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##556DD7	#FFFFFF	#000000	##FFFFFF
##556DD7	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#357BDB

Deuteranopia (green-blind)

#1A70D5

Tritanopia (blue-blind)

#008598

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #556dd7;
/* rgb */ color: rgb(85, 109, 215);
/* oklch */ color: oklch(57.1% 0.164 270.8);

Tailwind

colors: {
  custom: {
    50: '#9096e4',
    500: '#556dd7',
    950: '#000000',
  },
}

SCSS

$custom: #556dd7;
$custom-light: #9096e4;
$custom-dark: #000000;

JSON

{
  "hex": "#556dd7",
  "rgb": {
    "r": 85,
    "g": 109,
    "b": 215
  },
  "hsl": {
    "h": 228.923,
    "s": 61.905,
    "l": 58.824
  },
  "oklch": {
    "l": 0.57098,
    "c": 0.16399,
    "h": 270.8
  },
  "luminance": 0.17775
}

Semantic roles & 50–950 ramp

primary

#556DD7

secondary

#DED4AA

accent

#C743E5

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #556DD7

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

Preview Lab → · Contrast checker → · Palette generator →