#557FD7#557FD7

#557FD7 is a mid, vivid blue. Relative luminance 0.220; OKLCH L 60.8% C 0.142 H 263.5°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#557FD7
RGB	rgb(85, 127, 215)
HSL	hsl(221, 62%, 59%)
HSV	hsv(221, 60%, 84%)
CMYK	cmyk(60.5%, 40.9%, 0%, 15.7%)
CIE-LAB	lab(54.04, 12.35, -49.59)
CIE-LCH	lch(54.04, 51.10, 283.98°)
OKLab	oklab(60.79% -0.0161 -0.1411)
OKLCH	oklch(60.79% 0.142 263.5)
XYZ	xyz(23.5972, 22.0143, 67.2825)
Luminance	0.2202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FD7 #D7AD55

analogous

#55C0D7 #557FD7 #6C55D7

triadic

#557FD7 #D7557F #7FD755

tetradic

#557FD7 #D755C0 #D7AD55 #55D76C

square

#557FD7 #D755C0 #D7AD55 #55D76C

split-complementary

#557FD7 #D76C55 #C0D755

monochromatic

#224590 #2D5DC1 #557FD7 #87A4E3 #B8CAEE

Accessibility & contrast

On white

3.89

#557FD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#557FD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FD7

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FD7	#FFFFFF	#000000	##000000
##557FD7	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5888DA

Deuteranopia (green-blind)

#467CD5

Tritanopia (blue-blind)

#0093A0

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557fd7;
/* rgb */ color: rgb(85, 127, 215);
/* oklch */ color: oklch(60.8% 0.142 263.5);

Tailwind

colors: {
  custom: {
    50: '#90a3e4',
    500: '#557fd7',
    950: '#000000',
  },
}

SCSS

$custom: #557fd7;
$custom-light: #90a3e4;
$custom-dark: #000000;

JSON

{
  "hex": "#557fd7",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 215
  },
  "hsl": {
    "h": 220.615,
    "s": 61.905,
    "l": 58.824
  },
  "oklch": {
    "l": 0.60788,
    "c": 0.142,
    "h": 263.5
  },
  "luminance": 0.22016
}

Semantic roles & 50–950 ramp

primary

#557FD7

secondary

#DECDAA

accent

#B143E5

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0D0F15

muted

#7E7F84

Preview Lab

Preview with #557FD7

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

Preview Lab → · Contrast checker → · Palette generator →