#677BDD#677BDD

#677BDD is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.4% C 0.149 H 272.6°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#677BDD
RGB	rgb(103, 123, 221)
HSL	hsl(230, 63%, 64%)
HSV	hsv(230, 53%, 87%)
CMYK	cmyk(53.4%, 44.3%, 0%, 13.3%)
CIE-LAB	lab(54.31, 20.36, -52.48)
CIE-LCH	lch(54.31, 56.29, 291.20°)
OKLab	oklab(61.37% 0.0068 -0.1492)
OKLCH	oklch(61.37% 0.149 272.6)
XYZ	xyz(25.7234, 22.2682, 71.3353)
Luminance	0.2227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677BDD #DDC967

analogous

#67B6DD #677BDD #8E67DD

triadic

#677BDD #DD677B #7BDD67

tetradic

#677BDD #DD67B6 #DDC967 #67DD8E

square

#677BDD #DD67B6 #DDC967 #67DD8E

split-complementary

#677BDD #DD8E67 #B6DD67

monochromatic

#253BA5 #3550D2 #677BDD #99A6E8 #CBD2F3

Accessibility & contrast

On white

3.85

#677BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#677BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677BDD

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677BDD	#FFFFFF	#000000	##000000
##677BDD	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5087E1

Deuteranopia (green-blind)

#437DDB

Tritanopia (blue-blind)

#2D90A1

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #677bdd;
/* rgb */ color: rgb(103, 123, 221);
/* oklch */ color: oklch(61.4% 0.149 272.6);

Tailwind

colors: {
  custom: {
    50: '#9aa0e8',
    500: '#677bdd',
    950: '#000000',
  },
}

SCSS

$custom: #677bdd;
$custom-light: #9aa0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#677bdd",
  "rgb": {
    "r": 103,
    "g": 123,
    "b": 221
  },
  "hsl": {
    "h": 229.831,
    "s": 63.441,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61368,
    "c": 0.1494,
    "h": 272.6
  },
  "luminance": 0.2227
}

Semantic roles & 50–950 ramp

primary

#677BDD

secondary

#E5DEBB

accent

#AD1ACB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #677BDD

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

Preview Lab → · Contrast checker → · Palette generator →