#557EC0#557EC0

#557EC0 is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.3% C 0.112 H 259.6°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#557EC0
RGB	rgb(85, 126, 192)
HSL	hsl(217, 46%, 54%)
HSV	hsv(217, 56%, 75%)
CMYK	cmyk(55.7%, 34.4%, 0%, 24.7%)
CIE-LAB	lab(52.57, 5.34, -38.86)
CIE-LCH	lch(52.57, 39.22, 277.83°)
OKLab	oklab(59.26% -0.0202 -0.1097)
OKLCH	oklch(59.26% 0.112 259.6)
XYZ	xyz(20.7183, 20.6571, 52.7544)
Luminance	0.2066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EC0 #C09755

analogous

#55B4C0 #557EC0 #6255C0

triadic

#557EC0 #C0557E #7EC055

tetradic

#557EC0 #C055B4 #C09755 #55C062

square

#557EC0 #C055B4 #C09755 #55C062

split-complementary

#557EC0 #C06255 #B4C055

monochromatic

#2A4571 #3A609D #557EC0 #82A0D1 #AEC2E1

Accessibility & contrast

On white

4.09

#557EC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#557EC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EC0

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EC0	#FFFFFF	#000000	##000000
##557EC0	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6383C3

Deuteranopia (green-blind)

#5679BF

Tritanopia (blue-blind)

#0C8D96

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557ec0;
/* rgb */ color: rgb(85, 126, 192);
/* oklch */ color: oklch(59.3% 0.112 259.6);

Tailwind

colors: {
  custom: {
    50: '#8ca3d3',
    500: '#557ec0',
    950: '#000000',
  },
}

SCSS

$custom: #557ec0;
$custom-light: #8ca3d3;
$custom-dark: #000000;

JSON

{
  "hex": "#557ec0",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 192
  },
  "hsl": {
    "h": 217.009,
    "s": 45.923,
    "l": 54.314
  },
  "oklch": {
    "l": 0.59259,
    "c": 0.11157,
    "h": 259.6
  },
  "luminance": 0.20659
}

Semantic roles & 50–950 ramp

primary

#557EC0

secondary

#CFBEA2

accent

#A352D6

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #557EC0

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

Preview Lab → · Contrast checker → · Palette generator →