#678DDD#678DDD

#678DDD is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.1% C 0.128 H 263.9°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#678DDD
RGB	rgb(103, 141, 221)
HSL	hsl(221, 63%, 64%)
HSV	hsv(221, 53%, 87%)
CMYK	cmyk(53.4%, 36.2%, 0%, 13.3%)
CIE-LAB	lab(59.11, 9.58, -44.86)
CIE-LCH	lch(59.11, 45.87, 282.05°)
OKLab	oklab(65.06% -0.0135 -0.1268)
OKLCH	oklch(65.06% 0.128 263.9)
XYZ	xyz(28.1651, 27.1517, 72.1492)
Luminance	0.2715 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#678DDD #DDB767

analogous

#67C8DD #678DDD #7C67DD

triadic

#678DDD #DD678D #8DDD67

tetradic

#678DDD #DD67C8 #DDB767 #67DD7C

square

#678DDD #DD67C8 #DDB767 #67DD7C

split-complementary

#678DDD #DD7C67 #C8DD67

monochromatic

#254EA5 #3567D2 #678DDD #99B3E8 #CBD8F3

Accessibility & contrast

On white

3.27

#678DDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#678DDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #678DDD

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##678DDD	#FFFFFF	#000000	##000000
##678DDD	1.00	3.27	6.43	6.43
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D94E0

Deuteranopia (green-blind)

#5F89DB

Tritanopia (blue-blind)

#279EAA

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #678ddd;
/* rgb */ color: rgb(103, 141, 221);
/* oklch */ color: oklch(65.1% 0.128 263.9);

Tailwind

colors: {
  custom: {
    50: '#9aaee8',
    500: '#678ddd',
    950: '#000000',
  },
}

SCSS

$custom: #678ddd;
$custom-light: #9aaee8;
$custom-dark: #000000;

JSON

{
  "hex": "#678ddd",
  "rgb": {
    "r": 103,
    "g": 141,
    "b": 221
  },
  "hsl": {
    "h": 220.678,
    "s": 63.441,
    "l": 63.529
  },
  "oklch": {
    "l": 0.65064,
    "c": 0.1275,
    "h": 263.9
  },
  "luminance": 0.27154
}

Semantic roles & 50–950 ramp

primary

#678DDD

secondary

#E5D7BB

accent

#921ACB

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #678DDD

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

Preview Lab → · Contrast checker → · Palette generator →