#557ACE#557ACE

#557ACE is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.2% C 0.135 H 264.7°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#557ACE
RGB	rgb(85, 122, 206)
HSL	hsl(222, 55%, 57%)
HSV	hsv(222, 59%, 81%)
CMYK	cmyk(58.7%, 40.8%, 0%, 19.2%)
CIE-LAB	lab(52.18, 12.38, -47.46)
CIE-LCH	lch(52.18, 49.05, 284.62°)
OKLab	oklab(59.19% -0.0126 -0.1349)
OKLCH	oklch(59.19% 0.135 264.7)
XYZ	xyz(21.8426, 20.3048, 61.1487)
Luminance	0.2031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ACE #CEA955

analogous

#55B6CE #557ACE #6D55CE

triadic

#557ACE #CE557A #7ACE55

tetradic

#557ACE #CE55B6 #CEA955 #55CE6D

square

#557ACE #CE55B6 #CEA955 #55CE6D

split-complementary

#557ACE #CE6D55 #B6CE55

monochromatic

#264283 #335AB2 #557ACE #859FDC #B4C4E9

Accessibility & contrast

On white

4.15

#557ACE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#557ACE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ACE

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ACE	#FFFFFF	#000000	##000000
##557ACE	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5682D1

Deuteranopia (green-blind)

#4577CC

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #557ace;
/* rgb */ color: rgb(85, 122, 206);
/* oklch */ color: oklch(59.2% 0.135 264.7);

Tailwind

colors: {
  custom: {
    50: '#8ea0dd',
    500: '#557ace',
    950: '#000000',
  },
}

SCSS

$custom: #557ace;
$custom-light: #8ea0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#557ace",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 206
  },
  "hsl": {
    "h": 221.653,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59192,
    "c": 0.13548,
    "h": 264.7
  },
  "luminance": 0.20307
}

Semantic roles & 50–950 ramp

primary

#557ACE

secondary

#D8C9A7

accent

#B149DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #557ACE

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

Preview Lab → · Contrast checker → · Palette generator →