#557FD8#557FD8

#557FD8 is a mid, vivid blue. Relative luminance 0.221; OKLCH L 60.8% C 0.143 H 263.6°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#557FD8
RGB	rgb(85, 127, 216)
HSL	hsl(221, 63%, 59%)
HSV	hsv(221, 61%, 85%)
CMYK	cmyk(60.6%, 41.2%, 0%, 15.3%)
CIE-LAB	lab(54.10, 12.68, -50.07)
CIE-LCH	lch(54.10, 51.65, 284.21°)
OKLab	oklab(60.85% -0.0159 -0.1425)
OKLCH	oklch(60.85% 0.143 263.6)
XYZ	xyz(23.7261, 22.0658, 67.9612)
Luminance	0.2207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FD8 #D8AE55

analogous

#55C1D8 #557FD8 #6D55D8

triadic

#557FD8 #D8557F #7FD855

tetradic

#557FD8 #D855C1 #D8AE55 #55D86D

square

#557FD8 #D855C1 #D8AE55 #55D86D

split-complementary

#557FD8 #D86D55 #C1D855

monochromatic

#214591 #2D5DC3 #557FD8 #87A4E3 #B9CAEF

Accessibility & contrast

On white

3.88

#557FD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#557FD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FD8

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FD8	#FFFFFF	#000000	##000000
##557FD8	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5888DB

Deuteranopia (green-blind)

#457CD6

Tritanopia (blue-blind)

#0093A1

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557fd8;
/* rgb */ color: rgb(85, 127, 216);
/* oklch */ color: oklch(60.8% 0.143 263.6);

Tailwind

colors: {
  custom: {
    50: '#90a3e4',
    500: '#557fd8',
    950: '#000000',
  },
}

SCSS

$custom: #557fd8;
$custom-light: #90a3e4;
$custom-dark: #000000;

JSON

{
  "hex": "#557fd8",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 216
  },
  "hsl": {
    "h": 220.763,
    "s": 62.679,
    "l": 59.02
  },
  "oklch": {
    "l": 0.60848,
    "c": 0.14337,
    "h": 263.6
  },
  "luminance": 0.22068
}

Semantic roles & 50–950 ramp

primary

#557FD8

secondary

#DECEAB

accent

#B142E6

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #557FD8

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

Preview Lab → · Contrast checker → · Palette generator →