#557ECE#557ECE

#557ECE is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.0% C 0.131 H 262.6°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#557ECE
RGB	rgb(85, 126, 206)
HSL	hsl(220, 55%, 57%)
HSV	hsv(220, 59%, 81%)
CMYK	cmyk(58.7%, 38.8%, 0%, 19.2%)
CIE-LAB	lab(53.28, 9.95, -45.70)
CIE-LCH	lch(53.28, 46.77, 282.28°)
OKLab	oklab(60.05% -0.0169 -0.1297)
OKLCH	oklch(60.05% 0.131 262.6)
XYZ	xyz(22.3439, 21.3074, 61.3158)
Luminance	0.2131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ECE #CEA555

analogous

#55BBCE #557ECE #6855CE

triadic

#557ECE #CE557E #7ECE55

tetradic

#557ECE #CE55BB #CEA555 #55CE68

square

#557ECE #CE55BB #CEA555 #55CE68

split-complementary

#557ECE #CE6855 #BBCE55

monochromatic

#264583 #335EB2 #557ECE #85A2DC #B4C6E9

Accessibility & contrast

On white

3.99

#557ECE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#557ECE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ECE

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ECE	#FFFFFF	#000000	##000000
##557ECE	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C85D1

Deuteranopia (green-blind)

#4C7ACC

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557ece;
/* rgb */ color: rgb(85, 126, 206);
/* oklch */ color: oklch(60.0% 0.131 262.6);

Tailwind

colors: {
  custom: {
    50: '#8ea3dd',
    500: '#557ece',
    950: '#000000',
  },
}

SCSS

$custom: #557ece;
$custom-light: #8ea3dd;
$custom-dark: #000000;

JSON

{
  "hex": "#557ece",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 206
  },
  "hsl": {
    "h": 219.669,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.60045,
    "c": 0.13081,
    "h": 262.6
  },
  "luminance": 0.21309
}

Semantic roles & 50–950 ramp

primary

#557ECE

secondary

#D8C7A7

accent

#AC49DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #557ECE

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

Preview Lab → · Contrast checker → · Palette generator →