#557EBE#557EBE

#557EBE is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.2% C 0.109 H 259.0°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#557EBE
RGB	rgb(85, 126, 190)
HSL	hsl(217, 45%, 54%)
HSV	hsv(217, 55%, 75%)
CMYK	cmyk(55.3%, 33.7%, 0%, 25.5%)
CIE-LAB	lab(52.47, 4.70, -37.86)
CIE-LCH	lch(52.47, 38.15, 277.07°)
OKLab	oklab(59.15% -0.0207 -0.1068)
OKLCH	oklch(59.15% 0.109 259)
XYZ	xyz(20.4982, 20.5691, 51.5953)
Luminance	0.2057 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EBE #BE9555

analogous

#55B3BE #557EBE #6155BE

triadic

#557EBE #BE557E #7EBE55

tetradic

#557EBE #BE55B3 #BE9555 #55BE61

square

#557EBE #BE55B3 #BE9555 #55BE61

split-complementary

#557EBE #BE6155 #B3BE55

monochromatic

#2A456E #3B609B #557EBE #81A0CF #AEC1E0

Accessibility & contrast

On white

4.11

#557EBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#557EBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EBE

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EBE	#FFFFFF	#000000	##000000
##557EBE	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6483C1

Deuteranopia (green-blind)

#5779BD

Tritanopia (blue-blind)

#128C95

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557ebe;
/* rgb */ color: rgb(85, 126, 190);
/* oklch */ color: oklch(59.2% 0.109 259.0);

Tailwind

colors: {
  custom: {
    50: '#8ca3d2',
    500: '#557ebe',
    950: '#000000',
  },
}

SCSS

$custom: #557ebe;
$custom-light: #8ca3d2;
$custom-dark: #000000;

JSON

{
  "hex": "#557ebe",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 190
  },
  "hsl": {
    "h": 216.571,
    "s": 44.681,
    "l": 53.922
  },
  "oklch": {
    "l": 0.59151,
    "c": 0.10884,
    "h": 259
  },
  "luminance": 0.20571
}

Semantic roles & 50–950 ramp

primary

#557EBE

secondary

#CEBCA1

accent

#A253D4

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0D0F14

muted

#7D7F82

Preview Lab

Preview with #557EBE

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

Preview Lab → · Contrast checker → · Palette generator →