#557AE9#557AE9

#557AE9 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.9% C 0.172 H 267.3°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#557AE9
RGB	rgb(85, 122, 233)
HSL	hsl(225, 77%, 62%)
HSV	hsv(225, 64%, 91%)
CMYK	cmyk(63.5%, 47.6%, 0%, 8.6%)
CIE-LAB	lab(53.74, 21.49, -60.18)
CIE-LCH	lch(53.74, 63.90, 289.65°)
OKLab	oklab(60.89% -0.0082 -0.1723)
OKLCH	oklch(60.89% 0.172 267.3)
XYZ	xyz(25.4088, 21.7312, 79.9305)
Luminance	0.2173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557AE9 #E9C455

analogous

#55C4E9 #557AE9 #7A55E9

triadic

#557AE9 #E9557A #7AE955

tetradic

#557AE9 #E955C4 #E9C455 #55E97A

square

#557AE9 #E955C4 #E9C455 #55E97A

split-complementary

#557AE9 #E97A55 #C4E955

monochromatic

#163CAD #1F50E2 #557AE9 #8BA4F0 #C1CFF7

Accessibility & contrast

On white

3.93

#557AE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#557AE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557AE9

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557AE9	#FFFFFF	#000000	##000000
##557AE9	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4088ED

Deuteranopia (green-blind)

#217AE7

Tritanopia (blue-blind)

#0094A6

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557ae9;
/* rgb */ color: rgb(85, 122, 233);
/* oklch */ color: oklch(60.9% 0.172 267.3);

Tailwind

colors: {
  custom: {
    50: '#93a0f1',
    500: '#557ae9',
    950: '#000000',
  },
}

SCSS

$custom: #557ae9;
$custom-light: #93a0f1;
$custom-dark: #000000;

JSON

{
  "hex": "#557ae9",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 233
  },
  "hsl": {
    "h": 225,
    "s": 77.083,
    "l": 62.353
  },
  "oklch": {
    "l": 0.60893,
    "c": 0.17245,
    "h": 267.3
  },
  "luminance": 0.21734
}

Semantic roles & 50–950 ramp

primary

#557AE9

secondary

#E8DAB2

accent

#A60CD9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557AE9

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

Preview Lab → · Contrast checker → · Palette generator →