#557FE0#557FE0

#557FE0 is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.3% C 0.154 H 264.6°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#557FE0
RGB	rgb(85, 127, 224)
HSL	hsl(222, 69%, 61%)
HSV	hsv(222, 62%, 88%)
CMYK	cmyk(62.1%, 43.3%, 0%, 12.2%)
CIE-LAB	lab(54.54, 15.38, -53.85)
CIE-LCH	lch(54.54, 56.00, 285.94°)
OKLab	oklab(61.34% -0.0144 -0.1536)
OKLCH	oklch(61.34% 0.154 264.6)
XYZ	xyz(24.7856, 22.4896, 73.5413)
Luminance	0.2249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FE0 #E0B655

analogous

#55C4E0 #557FE0 #7155E0

triadic

#557FE0 #E0557F #7FE055

tetradic

#557FE0 #E055C4 #E0B655 #55E071

square

#557FE0 #E055C4 #E0B655 #55E071

split-complementary

#557FE0 #E07155 #C4E055

monochromatic

#1D449E #265AD2 #557FE0 #89A6E9 #BDCDF3

Accessibility & contrast

On white

3.82

#557FE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#557FE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FE0

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FE0	#FFFFFF	#000000	##000000
##557FE0	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5289E4

Deuteranopia (green-blind)

#3D7DDE

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #557fe0;
/* rgb */ color: rgb(85, 127, 224);
/* oklch */ color: oklch(61.3% 0.154 264.6);

Tailwind

colors: {
  custom: {
    50: '#91a3ea',
    500: '#557fe0',
    950: '#000000',
  },
}

SCSS

$custom: #557fe0;
$custom-light: #91a3ea;
$custom-dark: #000000;

JSON

{
  "hex": "#557fe0",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 224
  },
  "hsl": {
    "h": 221.871,
    "s": 69.154,
    "l": 60.588
  },
  "oklch": {
    "l": 0.61336,
    "c": 0.15427,
    "h": 264.6
  },
  "luminance": 0.22492
}

Semantic roles & 50–950 ramp

primary

#557FE0

secondary

#E3D3AE

accent

#9814D1

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #557FE0

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

Preview Lab → · Contrast checker → · Palette generator →