#677EDD#677EDD

#677EDD is a mid, vivid blue. Relative luminance 0.230; OKLCH L 62.0% C 0.146 H 271.3°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#677EDD
RGB	rgb(103, 126, 221)
HSL	hsl(228, 63%, 64%)
HSV	hsv(228, 53%, 87%)
CMYK	cmyk(53.4%, 43%, 0%, 13.3%)
CIE-LAB	lab(55.10, 18.54, -51.23)
CIE-LCH	lch(55.10, 54.48, 289.90°)
OKLab	oklab(61.97% 0.0034 -0.1456)
OKLCH	oklch(61.97% 0.146 271.3)
XYZ	xyz(26.1013, 23.0239, 71.4612)
Luminance	0.2303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677EDD #DDC667

analogous

#67B9DD #677EDD #8B67DD

triadic

#677EDD #DD677E #7EDD67

tetradic

#677EDD #DD67B9 #DDC667 #67DD8B

square

#677EDD #DD67B9 #DDC667 #67DD8B

split-complementary

#677EDD #DD8B67 #B9DD67

monochromatic

#253EA5 #3554D2 #677EDD #99A8E8 #CBD3F3

Accessibility & contrast

On white

3.75

#677EDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#677EDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677EDD

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677EDD	#FFFFFF	#000000	##000000
##677EDD	1.00	3.75	5.61	5.61
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5689E1

Deuteranopia (green-blind)

#487FDB

Tritanopia (blue-blind)

#2C93A3

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #677edd;
/* rgb */ color: rgb(103, 126, 221);
/* oklch */ color: oklch(62.0% 0.146 271.3);

Tailwind

colors: {
  custom: {
    50: '#9aa3e8',
    500: '#677edd',
    950: '#000000',
  },
}

SCSS

$custom: #677edd;
$custom-light: #9aa3e8;
$custom-dark: #000000;

JSON

{
  "hex": "#677edd",
  "rgb": {
    "r": 103,
    "g": 126,
    "b": 221
  },
  "hsl": {
    "h": 228.305,
    "s": 63.441,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61969,
    "c": 0.14559,
    "h": 271.3
  },
  "luminance": 0.23026
}

Semantic roles & 50–950 ramp

primary

#677EDD

secondary

#E5DDBB

accent

#A91ACB

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0F0F16

muted

#7E7F84

Preview Lab

Preview with #677EDD

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

Preview Lab → · Contrast checker → · Palette generator →