#677BDF#677BDF

#677BDF is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.5% C 0.152 H 272.7°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#677BDF
RGB	rgb(103, 123, 223)
HSL	hsl(230, 65%, 64%)
HSV	hsv(230, 54%, 87%)
CMYK	cmyk(53.8%, 44.8%, 0%, 12.5%)
CIE-LAB	lab(54.42, 20.99, -53.42)
CIE-LCH	lch(54.42, 57.40, 291.45°)
OKLab	oklab(61.49% 0.0071 -0.152)
OKLCH	oklch(61.49% 0.152 272.7)
XYZ	xyz(25.9914, 22.3754, 72.7470)
Luminance	0.2238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677BDF #DFCB67

analogous

#67B7DF #677BDF #8F67DF

triadic

#677BDF #DF677B #7BDF67

tetradic

#677BDF #DF67B7 #DFCB67 #67DF8F

square

#677BDF #DF67B7 #DFCB67 #67DF8F

split-complementary

#677BDF #DF8F67 #B7DF67

monochromatic

#233AA8 #344FD4 #677BDF #9AA7EA #CCD3F4

Accessibility & contrast

On white

3.84

#677BDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#677BDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677BDF

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677BDF	#FFFFFF	#000000	##000000
##677BDF	1.00	3.84	5.48	5.48
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F88E3

Deuteranopia (green-blind)

#417DDD

Tritanopia (blue-blind)

#2A91A2

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #677bdf;
/* rgb */ color: rgb(103, 123, 223);
/* oklch */ color: oklch(61.5% 0.152 272.7);

Tailwind

colors: {
  custom: {
    50: '#9aa0e9',
    500: '#677bdf',
    950: '#000000',
  },
}

SCSS

$custom: #677bdf;
$custom-light: #9aa0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#677bdf",
  "rgb": {
    "r": 103,
    "g": 123,
    "b": 223
  },
  "hsl": {
    "h": 230,
    "s": 65.217,
    "l": 63.922
  },
  "oklch": {
    "l": 0.61491,
    "c": 0.15218,
    "h": 272.7
  },
  "luminance": 0.22377
}

Semantic roles & 50–950 ramp

primary

#677BDF

secondary

#E6DFBC

accent

#AF18CD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #677BDF

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

Preview Lab → · Contrast checker → · Palette generator →