#677CDA#677CDA

#677CDA is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.4% C 0.144 H 272.1°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#677CDA
RGB	rgb(103, 124, 218)
HSL	hsl(229, 61%, 63%)
HSV	hsv(229, 53%, 85%)
CMYK	cmyk(52.8%, 43.1%, 0%, 14.5%)
CIE-LAB	lab(54.41, 18.80, -50.64)
CIE-LCH	lch(54.41, 54.02, 290.37°)
OKLab	oklab(61.39% 0.0052 -0.1438)
OKLCH	oklch(61.39% 0.144 272.1)
XYZ	xyz(25.4520, 22.3591, 69.2906)
Luminance	0.2236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677CDA #DAC567

analogous

#67B6DA #677CDA #8B67DA

triadic

#677CDA #DA677C #7CDA67

tetradic

#677CDA #DA67B6 #DAC567 #67DA8B

square

#677CDA #DA67B6 #DAC567 #67DA8B

split-complementary

#677CDA #DA8B67 #B6DA67

monochromatic

#273DA0 #3652CE #677CDA #98A6E6 #C9D1F2

Accessibility & contrast

On white

3.84

#677CDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#677CDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677CDA

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677CDA	#FFFFFF	#000000	##000000
##677CDA	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5487DE

Deuteranopia (green-blind)

#477DD8

Tritanopia (blue-blind)

#3090A0

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #677cda;
/* rgb */ color: rgb(103, 124, 218);
/* oklch */ color: oklch(61.4% 0.144 272.1);

Tailwind

colors: {
  custom: {
    50: '#9aa1e6',
    500: '#677cda',
    950: '#000000',
  },
}

SCSS

$custom: #677cda;
$custom-light: #9aa1e6;
$custom-dark: #000000;

JSON

{
  "hex": "#677cda",
  "rgb": {
    "r": 103,
    "g": 124,
    "b": 218
  },
  "hsl": {
    "h": 229.043,
    "s": 60.847,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61387,
    "c": 0.14394,
    "h": 272.1
  },
  "luminance": 0.22361
}

Semantic roles & 50–950 ramp

primary

#677CDA

secondary

#E3DCBA

accent

#A91DC9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #677CDA

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

Preview Lab → · Contrast checker → · Palette generator →