#557DC1#557DC1

#557DC1 is a mid, moderate blue. Relative luminance 0.204; OKLCH L 59.1% C 0.114 H 260.5°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#557DC1
RGB	rgb(85, 125, 193)
HSL	hsl(218, 47%, 55%)
HSV	hsv(218, 56%, 76%)
CMYK	cmyk(56%, 35.2%, 0%, 24.3%)
CIE-LAB	lab(52.34, 6.27, -39.79)
CIE-LCH	lch(52.34, 40.29, 278.96°)
OKLab	oklab(59.09% -0.0188 -0.1125)
OKLCH	oklch(59.09% 0.114 260.5)
XYZ	xyz(20.7023, 20.4471, 53.2975)
Luminance	0.2045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DC1 #C19955

analogous

#55B3C1 #557DC1 #6355C1

triadic

#557DC1 #C1557D #7DC155

tetradic

#557DC1 #C155B3 #C19955 #55C163

square

#557DC1 #C155B3 #C19955 #55C163

split-complementary

#557DC1 #C16355 #B3C155

monochromatic

#2A4472 #3A5F9F #557DC1 #829FD1 #AFC2E2

Accessibility & contrast

On white

4.13

#557DC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#557DC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DC1

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DC1	#FFFFFF	#000000	##000000
##557DC1	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6182C4

Deuteranopia (green-blind)

#5478C0

Tritanopia (blue-blind)

#0A8C96

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557dc1;
/* rgb */ color: rgb(85, 125, 193);
/* oklch */ color: oklch(59.1% 0.114 260.5);

Tailwind

colors: {
  custom: {
    50: '#8ca2d4',
    500: '#557dc1',
    950: '#000000',
  },
}

SCSS

$custom: #557dc1;
$custom-light: #8ca2d4;
$custom-dark: #000000;

JSON

{
  "hex": "#557dc1",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 193
  },
  "hsl": {
    "h": 217.778,
    "s": 46.552,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59094,
    "c": 0.11404,
    "h": 260.5
  },
  "luminance": 0.20449
}

Semantic roles & 50–950 ramp

primary

#557DC1

secondary

#D0BFA2

accent

#A552D6

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #557DC1

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

Preview Lab → · Contrast checker → · Palette generator →