#557DCE#557DCE

#557DCE is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.8% C 0.132 H 263.1°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#557DCE
RGB	rgb(85, 125, 206)
HSL	hsl(220, 55%, 57%)
HSV	hsv(220, 59%, 81%)
CMYK	cmyk(58.7%, 39.3%, 0%, 19.2%)
CIE-LAB	lab(53.01, 10.55, -46.14)
CIE-LCH	lch(53.01, 47.33, 282.88°)
OKLab	oklab(59.83% -0.0158 -0.131)
OKLCH	oklch(59.83% 0.132 263.1)
XYZ	xyz(22.2167, 21.0529, 61.2734)
Luminance	0.2105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DCE #CEA655

analogous

#55BACE #557DCE #6A55CE

triadic

#557DCE #CE557D #7DCE55

tetradic

#557DCE #CE55BA #CEA655 #55CE6A

square

#557DCE #CE55BA #CEA655 #55CE6A

split-complementary

#557DCE #CE6A55 #BACE55

monochromatic

#264583 #335DB2 #557DCE #85A1DC #B4C6E9

Accessibility & contrast

On white

4.03

#557DCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#557DCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DCE

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DCE	#FFFFFF	#000000	##000000
##557DCE	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A85D1

Deuteranopia (green-blind)

#4A79CC

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557dce;
/* rgb */ color: rgb(85, 125, 206);
/* oklch */ color: oklch(59.8% 0.132 263.1);

Tailwind

colors: {
  custom: {
    50: '#8ea2dd',
    500: '#557dce',
    950: '#000000',
  },
}

SCSS

$custom: #557dce;
$custom-light: #8ea2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#557dce",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 206
  },
  "hsl": {
    "h": 220.165,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59831,
    "c": 0.13197,
    "h": 263.1
  },
  "luminance": 0.21055
}

Semantic roles & 50–950 ramp

primary

#557DCE

secondary

#D8C8A7

accent

#AD49DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #557DCE

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

Preview Lab → · Contrast checker → · Palette generator →