#557ABA#557ABA

#557ABA is a mid, moderate blue. Relative luminance 0.194; OKLCH L 58.1% C 0.108 H 260.8°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#557ABA
RGB	rgb(85, 122, 186)
HSL	hsl(218, 42%, 53%)
HSV	hsv(218, 54%, 73%)
CMYK	cmyk(54.3%, 34.4%, 0%, 27.1%)
CIE-LAB	lab(51.15, 5.81, -37.66)
CIE-LCH	lch(51.15, 38.11, 278.77°)
OKLab	oklab(58.05% -0.0172 -0.1063)
OKLCH	oklch(58.05% 0.108 260.8)
XYZ	xyz(19.5658, 19.3940, 49.1572)
Luminance	0.1940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ABA #BA9555

analogous

#55ACBA #557ABA #6255BA

triadic

#557ABA #BA557A #7ABA55

tetradic

#557ABA #BA55AC #BA9555 #55BA62

square

#557ABA #BA55AC #BA9555 #55BA62

split-complementary

#557ABA #BA6255 #ACBA55

monochromatic

#2B426A #3D5D95 #557ABA #819CCC #ACBEDD

Accessibility & contrast

On white

4.30

#557ABA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#557ABA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ABA

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ABA	#FFFFFF	#000000	##000000
##557ABA	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607FBD

Deuteranopia (green-blind)

#5476B9

Tritanopia (blue-blind)

#1C8891

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #557aba;
/* rgb */ color: rgb(85, 122, 186);
/* oklch */ color: oklch(58.1% 0.108 260.8);

Tailwind

colors: {
  custom: {
    50: '#8ca0cf',
    500: '#557aba',
    950: '#000000',
  },
}

SCSS

$custom: #557aba;
$custom-light: #8ca0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#557aba",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 186
  },
  "hsl": {
    "h": 218.02,
    "s": 42.259,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58052,
    "c": 0.10766,
    "h": 260.8
  },
  "luminance": 0.19396
}

Semantic roles & 50–950 ramp

primary

#557ABA

secondary

#CBBBA0

accent

#A556D2

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #557ABA

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

Preview Lab → · Contrast checker → · Palette generator →