#677DDF#677DDF

#677DDF is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.9% C 0.150 H 271.9°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#677DDF
RGB	rgb(103, 125, 223)
HSL	hsl(229, 65%, 64%)
HSV	hsv(229, 54%, 87%)
CMYK	cmyk(53.8%, 43.9%, 0%, 12.5%)
CIE-LAB	lab(54.95, 19.78, -52.59)
CIE-LCH	lch(54.95, 56.19, 290.61°)
OKLab	oklab(61.89% 0.0049 -0.1496)
OKLCH	oklch(61.89% 0.15 271.9)
XYZ	xyz(26.2421, 22.8767, 72.8305)
Luminance	0.2288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677DDF #DFC967

analogous

#67B9DF #677DDF #8D67DF

triadic

#677DDF #DF677D #7DDF67

tetradic

#677DDF #DF67B9 #DFC967 #67DF8D

square

#677DDF #DF67B9 #DFC967 #67DF8D

split-complementary

#677DDF #DF8D67 #B9DF67

monochromatic

#233CA8 #3452D4 #677DDF #9AA8EA #CCD3F4

Accessibility & contrast

On white

3.77

#677DDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#677DDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677DDF

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677DDF	#FFFFFF	#000000	##000000
##677DDF	1.00	3.77	5.58	5.58
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5289E3

Deuteranopia (green-blind)

#447FDD

Tritanopia (blue-blind)

#2992A3

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #677ddf;
/* rgb */ color: rgb(103, 125, 223);
/* oklch */ color: oklch(61.9% 0.150 271.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#677ddf",
  "rgb": {
    "r": 103,
    "g": 125,
    "b": 223
  },
  "hsl": {
    "h": 229,
    "s": 65.217,
    "l": 63.922
  },
  "oklch": {
    "l": 0.61889,
    "c": 0.14964,
    "h": 271.9
  },
  "luminance": 0.22879
}

Semantic roles & 50–950 ramp

primary

#677DDF

secondary

#E6DEBC

accent

#AC18CD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #677DDF

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

Preview Lab → · Contrast checker → · Palette generator →