#677BBC#677BBC

#677BBC is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.5% C 0.102 H 270.1°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#677BBC
RGB	rgb(103, 123, 188)
HSL	hsl(226, 39%, 57%)
HSV	hsv(226, 45%, 74%)
CMYK	cmyk(45.2%, 34.6%, 0%, 26.3%)
CIE-LAB	lab(52.60, 10.16, -36.45)
CIE-LCH	lch(52.60, 37.84, 285.57°)
OKLab	oklab(59.49% 0.0001 -0.1024)
OKLCH	oklch(59.49% 0.102 270.1)
XYZ	xyz(21.7507, 20.6791, 50.4126)
Luminance	0.2068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677BBC #BCA867

analogous

#67A6BC #677BBC #7D67BC

triadic

#677BBC #BC677B #7BBC67

tetradic

#677BBC #BC67A6 #BCA867 #67BC7D

square

#677BBC #BC67A6 #BCA867 #67BC7D

split-complementary

#677BBC #BC7D67 #A6BC67

monochromatic

#344375 #465B9F #677BBC #91A0CF #BCC5E1

Accessibility & contrast

On white

4.09

#677BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#677BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #677BBC

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677BBC	#FFFFFF	#000000	##000000
##677BBC	1.00	4.09	5.14	5.14
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6481BF

Deuteranopia (green-blind)

#5B7ABB

Tritanopia (blue-blind)

#488893

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #677bbc;
/* rgb */ color: rgb(103, 123, 188);
/* oklch */ color: oklch(59.5% 0.102 270.1);

Tailwind

colors: {
  custom: {
    50: '#96a1d0',
    500: '#677bbc',
    950: '#000000',
  },
}

SCSS

$custom: #677bbc;
$custom-light: #96a1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#677bbc",
  "rgb": {
    "r": 103,
    "g": 123,
    "b": 188
  },
  "hsl": {
    "h": 225.882,
    "s": 38.813,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59493,
    "c": 0.10244,
    "h": 270.1
  },
  "luminance": 0.2068
}

Semantic roles & 50–950 ramp

primary

#677BBC

secondary

#D1C9AE

accent

#B359CF

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0E14

muted

#7E7E82

Preview Lab

Preview with #677BBC

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

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