#557EBA#557EBA

#557EBA is a mid, moderate blue. Relative luminance 0.204; OKLCH L 58.9% C 0.103 H 257.8°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#557EBA
RGB	rgb(85, 126, 186)
HSL	hsl(216, 42%, 53%)
HSV	hsv(216, 54%, 73%)
CMYK	cmyk(54.3%, 32.3%, 0%, 27.1%)
CIE-LAB	lab(52.28, 3.40, -35.87)
CIE-LCH	lch(52.28, 36.03, 275.42°)
OKLab	oklab(58.94% -0.0218 -0.101)
OKLCH	oklch(58.94% 0.103 257.8)
XYZ	xyz(20.0670, 20.3966, 49.3243)
Luminance	0.2040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EBA #BA9155

analogous

#55B0BA #557EBA #5F55BA

triadic

#557EBA #BA557E #7EBA55

tetradic

#557EBA #BA55B0 #BA9155 #55BA5F

square

#557EBA #BA55B0 #BA9155 #55BA5F

split-complementary

#557EBA #BA5F55 #B0BA55

monochromatic

#2B446A #3D6195 #557EBA #819FCC #ACC0DD

Accessibility & contrast

On white

4.13

#557EBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#557EBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EBA

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EBA	#FFFFFF	#000000	##000000
##557EBA	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6682BD

Deuteranopia (green-blind)

#5978B9

Tritanopia (blue-blind)

#1A8B93

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557eba;
/* rgb */ color: rgb(85, 126, 186);
/* oklch */ color: oklch(58.9% 0.103 257.8);

Tailwind

colors: {
  custom: {
    50: '#8ca3cf',
    500: '#557eba',
    950: '#000000',
  },
}

SCSS

$custom: #557eba;
$custom-light: #8ca3cf;
$custom-dark: #000000;

JSON

{
  "hex": "#557eba",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 186
  },
  "hsl": {
    "h": 215.644,
    "s": 42.259,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58939,
    "c": 0.10338,
    "h": 257.8
  },
  "luminance": 0.20398
}

Semantic roles & 50–950 ramp

primary

#557EBA

secondary

#CBB9A0

accent

#A056D2

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #557EBA

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

Preview Lab → · Contrast checker → · Palette generator →