#557EBD#557EBD

#557EBD is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.1% C 0.107 H 258.7°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#557EBD
RGB	rgb(85, 126, 189)
HSL	hsl(216, 44%, 54%)
HSV	hsv(216, 55%, 74%)
CMYK	cmyk(55%, 33.3%, 0%, 25.9%)
CIE-LAB	lab(52.43, 4.37, -37.37)
CIE-LCH	lch(52.43, 37.62, 276.67°)
OKLab	oklab(59.1% -0.021 -0.1054)
OKLCH	oklch(59.1% 0.107 258.7)
XYZ	xyz(20.3893, 20.5255, 51.0216)
Luminance	0.2053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EBD #BD9455

analogous

#55B2BD #557EBD #6055BD

triadic

#557EBD #BD557E #7EBD55

tetradic

#557EBD #BD55B2 #BD9455 #55BD60

square

#557EBD #BD55B2 #BD9455 #55BD60

split-complementary

#557EBD #BD6055 #B2BD55

monochromatic

#2A456D #3C6099 #557EBD #819FCE #ADC1DF

Accessibility & contrast

On white

4.11

#557EBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#557EBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EBD

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EBD	#FFFFFF	#000000	##000000
##557EBD	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)

#6582C0

Deuteranopia (green-blind)

#5879BC

Tritanopia (blue-blind)

#148C95

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557ebd;
/* rgb */ color: rgb(85, 126, 189);
/* oklch */ color: oklch(59.1% 0.107 258.7);

Tailwind

colors: {
  custom: {
    50: '#8ca3d1',
    500: '#557ebd',
    950: '#000000',
  },
}

SCSS

$custom: #557ebd;
$custom-light: #8ca3d1;
$custom-dark: #000000;

JSON

{
  "hex": "#557ebd",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 189
  },
  "hsl": {
    "h": 216.346,
    "s": 44.068,
    "l": 53.725
  },
  "oklch": {
    "l": 0.59098,
    "c": 0.10748,
    "h": 258.7
  },
  "luminance": 0.20527
}

Semantic roles & 50–950 ramp

primary

#557EBD

secondary

#CDBCA1

accent

#A154D4

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0D0F14

muted

#7D7F82

Preview Lab

Preview with #557EBD

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

Preview Lab → · Contrast checker → · Palette generator →