#557ECC#557ECC

#557ECC is a mid, vivid blue. Relative luminance 0.212; OKLCH L 59.9% C 0.128 H 262.2°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#557ECC
RGB	rgb(85, 126, 204)
HSL	hsl(219, 54%, 57%)
HSV	hsv(219, 58%, 80%)
CMYK	cmyk(58.3%, 38.2%, 0%, 20%)
CIE-LAB	lab(53.18, 9.28, -44.73)
CIE-LCH	lch(53.18, 45.69, 281.72°)
OKLab	oklab(59.93% -0.0173 -0.1269)
OKLCH	oklch(59.93% 0.128 262.2)
XYZ	xyz(22.1025, 21.2108, 60.0444)
Luminance	0.2121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ECC #CCA355

analogous

#55B9CC #557ECC #6855CC

triadic

#557ECC #CC557E #7ECC55

tetradic

#557ECC #CC55B9 #CCA355 #55CC68

square

#557ECC #CC55B9 #CCA355 #55CC68

split-complementary

#557ECC #CC6855 #B9CC55

monochromatic

#264580 #355FAF #557ECC #84A2DA #B3C5E8

Accessibility & contrast

On white

4.01

#557ECC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#557ECC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ECC

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ECC	#FFFFFF	#000000	##000000
##557ECC	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D85CF

Deuteranopia (green-blind)

#4E7ACA

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557ecc;
/* rgb */ color: rgb(85, 126, 204);
/* oklch */ color: oklch(59.9% 0.128 262.2);

Tailwind

colors: {
  custom: {
    50: '#8ea3dc',
    500: '#557ecc',
    950: '#000000',
  },
}

SCSS

$custom: #557ecc;
$custom-light: #8ea3dc;
$custom-dark: #000000;

JSON

{
  "hex": "#557ecc",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 204
  },
  "hsl": {
    "h": 219.328,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.5993,
    "c": 0.12806,
    "h": 262.2
  },
  "luminance": 0.21213
}

Semantic roles & 50–950 ramp

primary

#557ECC

secondary

#D7C6A6

accent

#AB4BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #557ECC

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

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