#557FCA#557FCA

#557FCA is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.0% C 0.124 H 261.3°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#557FCA
RGB	rgb(85, 127, 202)
HSL	hsl(218, 52%, 56%)
HSV	hsv(218, 58%, 79%)
CMYK	cmyk(57.9%, 37.1%, 0%, 20.8%)
CIE-LAB	lab(53.35, 8.02, -43.32)
CIE-LCH	lch(53.35, 44.06, 280.49°)
OKLab	oklab(60.03% -0.0189 -0.1227)
OKLCH	oklch(60.03% 0.124 261.3)
XYZ	xyz(21.9927, 21.3725, 58.8320)
Luminance	0.2137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FCA #CAA055

analogous

#55B9CA #557FCA #6655CA

triadic

#557FCA #CA557F #7FCA55

tetradic

#557FCA #CA55B9 #CAA055 #55CA66

square

#557FCA #CA55B9 #CAA055 #55CA66

split-complementary

#557FCA #CA6655 #B9CA55

monochromatic

#27467D #3660AC #557FCA #84A2D9 #B2C5E7

Accessibility & contrast

On white

3.98

#557FCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#557FCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FCA

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FCA	#FFFFFF	#000000	##000000
##557FCA	1.00	3.98	5.27	5.27
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6085CD

Deuteranopia (green-blind)

#517AC8

Tritanopia (blue-blind)

#00909B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557fca;
/* rgb */ color: rgb(85, 127, 202);
/* oklch */ color: oklch(60.0% 0.124 261.3);

Tailwind

colors: {
  custom: {
    50: '#8ea3da',
    500: '#557fca',
    950: '#000000',
  },
}

SCSS

$custom: #557fca;
$custom-light: #8ea3da;
$custom-dark: #000000;

JSON

{
  "hex": "#557fca",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 202
  },
  "hsl": {
    "h": 218.462,
    "s": 52.466,
    "l": 56.275
  },
  "oklch": {
    "l": 0.60032,
    "c": 0.12418,
    "h": 261.3
  },
  "luminance": 0.21374
}

Semantic roles & 50–950 ramp

primary

#557FCA

secondary

#D5C4A5

accent

#A84CDC

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #557FCA

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

Preview Lab → · Contrast checker → · Palette generator →