#668BBF#668BBF

#668BBF is a light, moderate blue. Relative luminance 0.251; OKLCH L 63.0% C 0.089 H 257.0°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#668BBF
RGB	rgb(102, 139, 191)
HSL	hsl(215, 41%, 57%)
HSV	hsv(215, 47%, 75%)
CMYK	cmyk(46.6%, 27.2%, 0%, 25.1%)
CIE-LAB	lab(57.12, 1.33, -31.10)
CIE-LCH	lch(57.12, 31.13, 272.46°)
OKLab	oklab(63.05% -0.0201 -0.0869)
OKLCH	oklch(63.05% 0.089 257)
XYZ	xyz(24.1130, 25.0500, 52.8446)
Luminance	0.2505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668BBF #BF9A66

analogous

#66B8BF #668BBF #6D66BF

triadic

#668BBF #BF668B #8BBF66

tetradic

#668BBF #BF66B8 #BF9A66 #66BF6D

square

#668BBF #BF66B8 #BF9A66 #66BF6D

split-complementary

#668BBF #BF6D66 #B8BF66

monochromatic

#324F78 #446CA3 #668BBF #91ACD1 #BCCCE3

Accessibility & contrast

On white

3.49

#668BBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#668BBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BBF

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668BBF	#FFFFFF	#000000	##000000
##668BBF	1.00	3.49	6.01	6.01
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778EC1

Deuteranopia (green-blind)

#6D85BE

Tritanopia (blue-blind)

#42969D

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #668bbf;
/* rgb */ color: rgb(102, 139, 191);
/* oklch */ color: oklch(63.0% 0.089 257.0);

Tailwind

colors: {
  custom: {
    50: '#96acd2',
    500: '#668bbf',
    950: '#000000',
  },
}

SCSS

$custom: #668bbf;
$custom-light: #96acd2;
$custom-dark: #000000;

JSON

{
  "hex": "#668bbf",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 191
  },
  "hsl": {
    "h": 215.056,
    "s": 41.014,
    "l": 57.451
  },
  "oklch": {
    "l": 0.63046,
    "c": 0.08922,
    "h": 257
  },
  "luminance": 0.25052
}

Semantic roles & 50–950 ramp

primary

#668BBF

secondary

#D2C3AE

accent

#9E57D1

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0E1014

muted

#7E7F82

Preview Lab

Preview with #668BBF

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

Preview Lab → · Contrast checker → · Palette generator →