#557CD7#557CD7

#557CD7 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.2% C 0.146 H 264.9°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#557CD7
RGB	rgb(85, 124, 215)
HSL	hsl(222, 62%, 59%)
HSV	hsv(222, 60%, 84%)
CMYK	cmyk(60.5%, 42.3%, 0%, 15.7%)
CIE-LAB	lab(53.22, 14.17, -50.89)
CIE-LCH	lch(53.22, 52.83, 285.56°)
OKLab	oklab(60.16% -0.0129 -0.1449)
OKLCH	oklch(60.16% 0.146 264.9)
XYZ	xyz(23.2155, 21.2509, 67.1552)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CD7 #D7B055

analogous

#55BDD7 #557CD7 #6F55D7

triadic

#557CD7 #D7557C #7CD755

tetradic

#557CD7 #D755BD #D7B055 #55D76F

square

#557CD7 #D755BD #D7B055 #55D76F

split-complementary

#557CD7 #D76F55 #BDD755

monochromatic

#224390 #2D5AC1 #557CD7 #87A2E3 #B8C8EE

Accessibility & contrast

On white

4.00

#557CD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#557CD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CD7

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CD7	#FFFFFF	#000000	##000000
##557CD7	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5385DB

Deuteranopia (green-blind)

#407AD5

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557cd7;
/* rgb */ color: rgb(85, 124, 215);
/* oklch */ color: oklch(60.2% 0.146 264.9);

Tailwind

colors: {
  custom: {
    50: '#90a1e4',
    500: '#557cd7',
    950: '#000000',
  },
}

SCSS

$custom: #557cd7;
$custom-light: #90a1e4;
$custom-dark: #000000;

JSON

{
  "hex": "#557cd7",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 215
  },
  "hsl": {
    "h": 222,
    "s": 61.905,
    "l": 58.824
  },
  "oklch": {
    "l": 0.60156,
    "c": 0.14553,
    "h": 264.9
  },
  "luminance": 0.21253
}

Semantic roles & 50–950 ramp

primary

#557CD7

secondary

#DECEAA

accent

#B443E5

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0E15

muted

#7E7E84

Preview Lab

Preview with #557CD7

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

Preview Lab → · Contrast checker → · Palette generator →