#677DDE#677DDE

#677DDE is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.8% C 0.148 H 271.8°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#677DDE
RGB	rgb(103, 125, 222)
HSL	hsl(229, 64%, 64%)
HSV	hsv(229, 54%, 87%)
CMYK	cmyk(53.6%, 43.7%, 0%, 12.9%)
CIE-LAB	lab(54.89, 19.46, -52.12)
CIE-LCH	lch(54.89, 55.63, 290.48°)
OKLab	oklab(61.83% 0.0047 -0.1482)
OKLCH	oklch(61.83% 0.148 271.8)
XYZ	xyz(26.1077, 22.8229, 72.1226)
Luminance	0.2283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677DDE #DEC867

analogous

#67B8DE #677DDE #8C67DE

triadic

#677DDE #DE677D #7DDE67

tetradic

#677DDE #DE67B8 #DEC867 #67DE8C

square

#677DDE #DE67B8 #DEC867 #67DE8C

split-complementary

#677DDE #DE8C67 #B8DE67

monochromatic

#243CA6 #3552D3 #677DDE #99A8E9 #CCD3F4

Accessibility & contrast

On white

3.77

#677DDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#677DDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677DDE

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677DDE	#FFFFFF	#000000	##000000
##677DDE	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5389E2

Deuteranopia (green-blind)

#457FDC

Tritanopia (blue-blind)

#2B92A3

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #677dde;
/* rgb */ color: rgb(103, 125, 222);
/* oklch */ color: oklch(61.8% 0.148 271.8);

Tailwind

colors: {
  custom: {
    50: '#9aa2e9',
    500: '#677dde',
    950: '#000000',
  },
}

SCSS

$custom: #677dde;
$custom-light: #9aa2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#677dde",
  "rgb": {
    "r": 103,
    "g": 125,
    "b": 222
  },
  "hsl": {
    "h": 228.908,
    "s": 64.324,
    "l": 63.725
  },
  "oklch": {
    "l": 0.61829,
    "c": 0.14824,
    "h": 271.8
  },
  "luminance": 0.22825
}

Semantic roles & 50–950 ramp

primary

#677DDE

secondary

#E5DEBB

accent

#AB19CC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #677DDE

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

Preview Lab → · Contrast checker → · Palette generator →