#5978BB#5978BB

#5978BB is a mid, moderate blue. Relative luminance 0.191; OKLCH L 57.9% C 0.110 H 264.4°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#5978BB
RGB	rgb(89, 120, 187)
HSL	hsl(221, 42%, 54%)
HSV	hsv(221, 52%, 73%)
CMYK	cmyk(52.4%, 35.8%, 0%, 26.7%)
CIE-LAB	lab(50.85, 8.25, -38.68)
CIE-LCH	lch(50.85, 39.55, 282.04°)
OKLab	oklab(57.9% -0.0107 -0.1092)
OKLCH	oklch(57.9% 0.11 264.4)
XYZ	xyz(19.8029, 19.1432, 49.6556)
Luminance	0.1915 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5978BB #BB9C59

analogous

#59A9BB #5978BB #6B59BB

triadic

#5978BB #BB5978 #78BB59

tetradic

#5978BB #BB59A9 #BB9C59 #59BB6B

square

#5978BB #BB59A9 #BB9C59 #59BB6B

split-complementary

#5978BB #BB6B59 #A9BB59

monochromatic

#2D416D #3E5B98 #5978BB #849BCD #B0BFDF

Accessibility & contrast

On white

4.35

#5978BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#5978BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5978BB

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5978BB	#FFFFFF	#000000	##000000
##5978BB	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7EBE

Deuteranopia (green-blind)

#5275BA

Tritanopia (blue-blind)

#298791

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5978bb;
/* rgb */ color: rgb(89, 120, 187);
/* oklch */ color: oklch(57.9% 0.110 264.4);

Tailwind

colors: {
  custom: {
    50: '#8e9ed0',
    500: '#5978bb',
    950: '#000000',
  },
}

SCSS

$custom: #5978bb;
$custom-light: #8e9ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#5978bb",
  "rgb": {
    "r": 89,
    "g": 120,
    "b": 187
  },
  "hsl": {
    "h": 221.02,
    "s": 41.88,
    "l": 54.118
  },
  "oklch": {
    "l": 0.57902,
    "c": 0.10971,
    "h": 264.4
  },
  "luminance": 0.19145
}

Semantic roles & 50–950 ramp

primary

#5978BB

secondary

#CDC0A3

accent

#AB56D2

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E14

muted

#7E7E82

Preview Lab

Preview with #5978BB

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

Preview Lab → · Contrast checker → · Palette generator →