#557FC5#557FC5

#557FC5 is a mid, moderate blue. Relative luminance 0.211; OKLCH L 59.8% C 0.117 H 260.1°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#557FC5
RGB	rgb(85, 127, 197)
HSL	hsl(218, 49%, 55%)
HSV	hsv(218, 57%, 77%)
CMYK	cmyk(56.9%, 35.5%, 0%, 22.7%)
CIE-LAB	lab(53.10, 6.37, -40.87)
CIE-LCH	lch(53.10, 41.37, 278.86°)
OKLab	oklab(59.75% -0.0201 -0.1156)
OKLCH	oklch(59.75% 0.117 260.1)
XYZ	xyz(21.4102, 21.1395, 55.7646)
Luminance	0.2114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FC5 #C59B55

analogous

#55B7C5 #557FC5 #6355C5

triadic

#557FC5 #C5557F #7FC555

tetradic

#557FC5 #C555B7 #C59B55 #55C563

square

#557FC5 #C555B7 #C59B55 #55C563

split-complementary

#557FC5 #C56355 #B7C555

monochromatic

#294677 #3861A5 #557FC5 #83A1D5 #B0C4E4

Accessibility & contrast

On white

4.02

#557FC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#557FC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FC5

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FC5	#FFFFFF	#000000	##000000
##557FC5	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6285C8

Deuteranopia (green-blind)

#547AC4

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557fc5;
/* rgb */ color: rgb(85, 127, 197);
/* oklch */ color: oklch(59.8% 0.117 260.1);

Tailwind

colors: {
  custom: {
    50: '#8da3d7',
    500: '#557fc5',
    950: '#000000',
  },
}

SCSS

$custom: #557fc5;
$custom-light: #8da3d7;
$custom-dark: #000000;

JSON

{
  "hex": "#557fc5",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 197
  },
  "hsl": {
    "h": 217.5,
    "s": 49.123,
    "l": 55.294
  },
  "oklch": {
    "l": 0.59753,
    "c": 0.11733,
    "h": 260.1
  },
  "luminance": 0.21141
}

Semantic roles & 50–950 ramp

primary

#557FC5

secondary

#D2C1A3

accent

#A54FD9

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #557FC5

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

Preview Lab → · Contrast checker → · Palette generator →