#557EFF#557EFF

#557EFF is a light, vivid blue. Relative luminance 0.241; OKLCH L 63.2% C 0.197 H 267.3°. Best body text is #000000 at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#557EFF
RGB	rgb(85, 126, 255)
HSL	hsl(226, 100%, 67%)
HSV	hsv(226, 67%, 100%)
CMYK	cmyk(66.7%, 50.6%, 0%, 0%)
CIE-LAB	lab(56.16, 26.55, -68.49)
CIE-LCH	lch(56.16, 73.45, 291.19°)
OKLab	oklab(63.17% -0.0093 -0.1967)
OKLCH	oklch(63.17% 0.197 267.3)
XYZ	xyz(29.2509, 24.0702, 97.6928)
Luminance	0.2407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EFF #FFD655

analogous

#55D3FF #557EFF #8155FF

triadic

#557EFF #FF557E #7EFF55

tetradic

#557EFF #FF55D3 #FFD655 #55FF81

square

#557EFF #FF55D3 #FFD655 #55FF81

split-complementary

#557EFF #FF8155 #D3FF55

monochromatic

#0034DA #1850FF #557EFF #92ACFF #CFDBFF

Accessibility & contrast

On white

3.61

#557EFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.81

#557EFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EFF

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EFF	#FFFFFF	#000000	##000000
##557EFF	1.00	3.61	5.81	5.81
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.81	21.00	1.00	1.00
##000000	5.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F8FFF

Deuteranopia (green-blind)

#007FFC

Tritanopia (blue-blind)

#009CB3

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #557eff;
/* rgb */ color: rgb(85, 126, 255);
/* oklch */ color: oklch(63.2% 0.197 267.3);

Tailwind

colors: {
  custom: {
    50: '#96a2ff',
    500: '#557eff',
    950: '#000000',
  },
}

SCSS

$custom: #557eff;
$custom-light: #96a2ff;
$custom-dark: #000000;

JSON

{
  "hex": "#557eff",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 255
  },
  "hsl": {
    "h": 225.529,
    "s": 100,
    "l": 66.667
  },
  "oklch": {
    "l": 0.63172,
    "c": 0.19688,
    "h": 267.3
  },
  "luminance": 0.24073
}

Semantic roles & 50–950 ramp

primary

#557EFF

secondary

#F3E6BD

accent

#AE00E6

background

#FAF9FF

surface

#F3F2FF

border

#CDCCD7

text

#0F0F18

muted

#7F7E86

Preview Lab

Preview with #557EFF

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

Preview Lab → · Contrast checker → · Palette generator →