#557FD4#557FD4

#557FD4 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.6% C 0.138 H 263.1°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#557FD4
RGB	rgb(85, 127, 212)
HSL	hsl(220, 60%, 58%)
HSV	hsv(220, 60%, 83%)
CMYK	cmyk(59.9%, 40.1%, 0%, 16.9%)
CIE-LAB	lab(53.88, 11.34, -48.15)
CIE-LCH	lch(53.88, 49.47, 283.25°)
OKLab	oklab(60.61% -0.0167 -0.1369)
OKLCH	oklch(60.61% 0.138 263.1)
XYZ	xyz(23.2152, 21.8615, 65.2709)
Luminance	0.2186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FD4 #D4AA55

analogous

#55BFD4 #557FD4 #6A55D4

triadic

#557FD4 #D4557F #7FD455

tetradic

#557FD4 #D455BF #D4AA55 #55D46A

square

#557FD4 #D455BF #D4AA55 #55D46A

split-complementary

#557FD4 #D46A55 #BFD455

monochromatic

#23468B #305EBC #557FD4 #86A4E0 #B7C9ED

Accessibility & contrast

On white

3.91

#557FD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#557FD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FD4

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FD4	#FFFFFF	#000000	##000000
##557FD4	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A87D7

Deuteranopia (green-blind)

#497BD2

Tritanopia (blue-blind)

#00929F

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557fd4;
/* rgb */ color: rgb(85, 127, 212);
/* oklch */ color: oklch(60.6% 0.138 263.1);

Tailwind

colors: {
  custom: {
    50: '#8fa3e1',
    500: '#557fd4',
    950: '#000000',
  },
}

SCSS

$custom: #557fd4;
$custom-light: #8fa3e1;
$custom-dark: #000000;

JSON

{
  "hex": "#557fd4",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 212
  },
  "hsl": {
    "h": 220.157,
    "s": 59.624,
    "l": 58.235
  },
  "oklch": {
    "l": 0.60609,
    "c": 0.13789,
    "h": 263.1
  },
  "luminance": 0.21864
}

Semantic roles & 50–950 ramp

primary

#557FD4

secondary

#DCCBA9

accent

#AF45E3

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #557FD4

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

Preview Lab → · Contrast checker → · Palette generator →