#678BCB#678BCB

#678BCB is a light, moderate blue. Relative luminance 0.257; OKLCH L 63.7% C 0.105 H 261.4°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#678BCB
RGB	rgb(103, 139, 203)
HSL	hsl(218, 49%, 60%)
HSV	hsv(218, 49%, 80%)
CMYK	cmyk(49.3%, 31.5%, 0%, 20.4%)
CIE-LAB	lab(57.71, 5.19, -36.96)
CIE-LCH	lch(57.71, 37.32, 277.99°)
OKLab	oklab(63.69% -0.0157 -0.1038)
OKLCH	oklch(63.69% 0.105 261.4)
XYZ	xyz(25.6020, 25.6589, 60.0919)
Luminance	0.2566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#678BCB #CBA767

analogous

#67BDCB #678BCB #7567CB

triadic

#678BCB #CB678B #8BCB67

tetradic

#678BCB #CB67BD #CBA767 #67CB75

square

#678BCB #CB67BD #CBA767 #67CB75

split-complementary

#678BCB #CB7567 #BDCB67

monochromatic

#2F4F89 #3E6AB6 #678BCB #95AEDB #C2D1EA

Accessibility & contrast

On white

3.42

#678BCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.13

#678BCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #678BCB

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##678BCB	#FFFFFF	#000000	##000000
##678BCB	1.00	3.42	6.13	6.13
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.13	21.00	1.00	1.00
##000000	6.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7390CE

Deuteranopia (green-blind)

#6786CA

Tritanopia (blue-blind)

#3B99A2

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #678bcb;
/* rgb */ color: rgb(103, 139, 203);
/* oklch */ color: oklch(63.7% 0.105 261.4);

Tailwind

colors: {
  custom: {
    50: '#98acdb',
    500: '#678bcb',
    950: '#000000',
  },
}

SCSS

$custom: #678bcb;
$custom-light: #98acdb;
$custom-dark: #000000;

JSON

{
  "hex": "#678bcb",
  "rgb": {
    "r": 103,
    "g": 139,
    "b": 203
  },
  "hsl": {
    "h": 218.4,
    "s": 49.02,
    "l": 60
  },
  "oklch": {
    "l": 0.63694,
    "c": 0.10503,
    "h": 261.4
  },
  "luminance": 0.25661
}

Semantic roles & 50–950 ramp

primary

#678BCB

secondary

#DACCB4

accent

#A74FD9

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #678BCB

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

Preview Lab → · Contrast checker → · Palette generator →