#557FCE#557FCE

#557FCE is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.3% C 0.130 H 262.0°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#557FCE
RGB	rgb(85, 127, 206)
HSL	hsl(219, 55%, 57%)
HSV	hsv(219, 59%, 81%)
CMYK	cmyk(58.7%, 38.3%, 0%, 19.2%)
CIE-LAB	lab(53.56, 9.34, -45.26)
CIE-LCH	lch(53.56, 46.22, 281.66°)
OKLab	oklab(60.26% -0.0179 -0.1284)
OKLCH	oklch(60.26% 0.13 262)
XYZ	xyz(22.4724, 21.5644, 61.3586)
Luminance	0.2157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FCE #CEA455

analogous

#55BBCE #557FCE #6855CE

triadic

#557FCE #CE557F #7FCE55

tetradic

#557FCE #CE55BB #CEA455 #55CE68

square

#557FCE #CE55BB #CEA455 #55CE68

split-complementary

#557FCE #CE6855 #BBCE55

monochromatic

#264683 #335FB2 #557FCE #85A3DC #B4C7E9

Accessibility & contrast

On white

3.95

#557FCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#557FCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FCE

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FCE	#FFFFFF	#000000	##000000
##557FCE	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E86D1

Deuteranopia (green-blind)

#4E7BCC

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557fce;
/* rgb */ color: rgb(85, 127, 206);
/* oklch */ color: oklch(60.3% 0.130 262.0);

Tailwind

colors: {
  custom: {
    50: '#8ea3dd',
    500: '#557fce',
    950: '#000000',
  },
}

SCSS

$custom: #557fce;
$custom-light: #8ea3dd;
$custom-dark: #000000;

JSON

{
  "hex": "#557fce",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 206
  },
  "hsl": {
    "h": 219.174,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.6026,
    "c": 0.12967,
    "h": 262
  },
  "luminance": 0.21566
}

Semantic roles & 50–950 ramp

primary

#557FCE

secondary

#D8C7A7

accent

#AB49DF

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #557FCE

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

Preview Lab → · Contrast checker → · Palette generator →