#677CF3#677CF3

#677CF3 is a light, vivid blue. Relative luminance 0.238; OKLCH L 63.0% C 0.178 H 272.7°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#677CF3
RGB	rgb(103, 124, 243)
HSL	hsl(231, 85%, 68%)
HSV	hsv(231, 58%, 95%)
CMYK	cmyk(57.6%, 49%, 0%, 4.7%)
CIE-LAB	lab(55.85, 26.79, -62.29)
CIE-LCH	lch(55.85, 67.81, 293.27°)
OKLab	oklab(62.96% 0.0085 -0.1781)
OKLCH	oklch(62.96% 0.178 272.7)
XYZ	xyz(28.9735, 23.7677, 87.8375)
Luminance	0.2377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677CF3 #F3DE67

analogous

#67C2F3 #677CF3 #9867F3

triadic

#677CF3 #F3677C #7CF367

tetradic

#677CF3 #F367C2 #F3DE67 #67F398

square

#677CF3 #F367C2 #F3DE67 #67F398

split-complementary

#677CF3 #F39867 #C2F367

monochromatic

#102DCF #2E4BEF #677CF3 #A0ADF7 #D8DEFC

Accessibility & contrast

On white

3.65

#677CF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#677CF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677CF3

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677CF3	#FFFFFF	#000000	##000000
##677CF3	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F8CF7

Deuteranopia (green-blind)

#2680F0

Tritanopia (blue-blind)

#0097AC

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #677cf3;
/* rgb */ color: rgb(103, 124, 243);
/* oklch */ color: oklch(63.0% 0.178 272.7);

Tailwind

colors: {
  custom: {
    50: '#9da1f8',
    500: '#677cf3',
    950: '#000000',
  },
}

SCSS

$custom: #677cf3;
$custom-light: #9da1f8;
$custom-dark: #000000;

JSON

{
  "hex": "#677cf3",
  "rgb": {
    "r": 103,
    "g": 124,
    "b": 243
  },
  "hsl": {
    "h": 231,
    "s": 85.366,
    "l": 67.843
  },
  "oklch": {
    "l": 0.62957,
    "c": 0.17828,
    "h": 272.7
  },
  "luminance": 0.2377
}

Semantic roles & 50–950 ramp

primary

#677CF3

secondary

#F0EAC5

accent

#C104E2

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0F17

muted

#7F7E85

Preview Lab

Preview with #677CF3

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

Preview Lab → · Contrast checker → · Palette generator →