#557BDA#557BDA

#557BDA is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.1% C 0.151 H 265.7°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#557BDA
RGB	rgb(85, 123, 218)
HSL	hsl(223, 64%, 59%)
HSV	hsv(223, 61%, 85%)
CMYK	cmyk(61%, 43.6%, 0%, 14.5%)
CIE-LAB	lab(53.12, 15.79, -52.75)
CIE-LCH	lch(53.12, 55.06, 286.67°)
OKLab	oklab(60.13% -0.0114 -0.1504)
OKLCH	oklch(60.13% 0.151 265.7)
XYZ	xyz(23.4798, 21.1571, 69.1625)
Luminance	0.2116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BDA #DAB455

analogous

#55BEDA #557BDA #7255DA

triadic

#557BDA #DA557B #7BDA55

tetradic

#557BDA #DA55BE #DAB455 #55DA72

square

#557BDA #DA55BE #DAB455 #55DA72

split-complementary

#557BDA #DA7255 #BEDA55

monochromatic

#204194 #2B58C7 #557BDA #87A2E5 #BAC9F0

Accessibility & contrast

On white

4.01

#557BDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#557BDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BDA

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BDA	#FFFFFF	#000000	##000000
##557BDA	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F85DE

Deuteranopia (green-blind)

#3B79D8

Tritanopia (blue-blind)

#0090A0

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557bda;
/* rgb */ color: rgb(85, 123, 218);
/* oklch */ color: oklch(60.1% 0.151 265.7);

Tailwind

colors: {
  custom: {
    50: '#90a0e6',
    500: '#557bda',
    950: '#000000',
  },
}

SCSS

$custom: #557bda;
$custom-light: #90a0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#557bda",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 218
  },
  "hsl": {
    "h": 222.857,
    "s": 64.251,
    "l": 59.412
  },
  "oklch": {
    "l": 0.60133,
    "c": 0.15084,
    "h": 265.7
  },
  "luminance": 0.21159
}

Semantic roles & 50–950 ramp

primary

#557BDA

secondary

#DFD1AB

accent

#B841E7

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557BDA

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

Preview Lab → · Contrast checker → · Palette generator →