#557DCA#557DCA

#557DCA is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.6% C 0.126 H 262.4°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#557DCA
RGB	rgb(85, 125, 202)
HSL	hsl(219, 52%, 56%)
HSV	hsv(219, 58%, 79%)
CMYK	cmyk(57.9%, 38.1%, 0%, 20.8%)
CIE-LAB	lab(52.80, 9.23, -44.20)
CIE-LCH	lch(52.80, 45.16, 281.79°)
OKLab	oklab(59.6% -0.0167 -0.1253)
OKLCH	oklch(59.6% 0.126 262.4)
XYZ	xyz(21.7369, 20.8610, 58.7468)
Luminance	0.2086 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DCA #CAA255

analogous

#55B8CA #557DCA #6855CA

triadic

#557DCA #CA557D #7DCA55

tetradic

#557DCA #CA55B8 #CAA255 #55CA68

square

#557DCA #CA55B8 #CAA255 #55CA68

split-complementary

#557DCA #CA6855 #B8CA55

monochromatic

#27457D #365EAC #557DCA #84A1D9 #B2C4E7

Accessibility & contrast

On white

4.06

#557DCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#557DCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DCA

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DCA	#FFFFFF	#000000	##000000
##557DCA	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D84CD

Deuteranopia (green-blind)

#4E79C8

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557dca;
/* rgb */ color: rgb(85, 125, 202);
/* oklch */ color: oklch(59.6% 0.126 262.4);

Tailwind

colors: {
  custom: {
    50: '#8ea2da',
    500: '#557dca',
    950: '#000000',
  },
}

SCSS

$custom: #557dca;
$custom-light: #8ea2da;
$custom-dark: #000000;

JSON

{
  "hex": "#557dca",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 202
  },
  "hsl": {
    "h": 219.487,
    "s": 52.466,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59599,
    "c": 0.12644,
    "h": 262.4
  },
  "luminance": 0.20863
}

Semantic roles & 50–950 ramp

primary

#557DCA

secondary

#D5C5A5

accent

#AB4CDC

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #557DCA

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

Preview Lab → · Contrast checker → · Palette generator →