#557EBF#557EBF

#557EBF is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.2% C 0.110 H 259.3°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#557EBF
RGB	rgb(85, 126, 191)
HSL	hsl(217, 45%, 54%)
HSV	hsv(217, 55%, 75%)
CMYK	cmyk(55.5%, 34%, 0%, 25.1%)
CIE-LAB	lab(52.52, 5.02, -38.36)
CIE-LCH	lch(52.52, 38.69, 277.45°)
OKLab	oklab(59.21% -0.0205 -0.1083)
OKLCH	oklch(59.21% 0.11 259.3)
XYZ	xyz(20.6079, 20.6130, 52.1728)
Luminance	0.2061 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EBF #BF9655

analogous

#55B3BF #557EBF #6155BF

triadic

#557EBF #BF557E #7EBF55

tetradic

#557EBF #BF55B3 #BF9655 #55BF61

square

#557EBF #BF55B3 #BF9655 #55BF61

split-complementary

#557EBF #BF6155 #B3BF55

monochromatic

#2A4570 #3B609C #557EBF #81A0D0 #AEC1E0

Accessibility & contrast

On white

4.10

#557EBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#557EBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EBF

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EBF	#FFFFFF	#000000	##000000
##557EBF	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6483C2

Deuteranopia (green-blind)

#5679BE

Tritanopia (blue-blind)

#0F8C96

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557ebf;
/* rgb */ color: rgb(85, 126, 191);
/* oklch */ color: oklch(59.2% 0.110 259.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#557ebf",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 191
  },
  "hsl": {
    "h": 216.792,
    "s": 45.299,
    "l": 54.118
  },
  "oklch": {
    "l": 0.59205,
    "c": 0.1102,
    "h": 259.3
  },
  "luminance": 0.20615
}

Semantic roles & 50–950 ramp

primary

#557EBF

secondary

#CEBDA1

accent

#A353D5

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0F14

muted

#7E7E82

Preview Lab

Preview with #557EBF

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

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