#999BBB#999BBB

#999BBB is a light, muted blue. Relative luminance 0.338; OKLCH L 69.9% C 0.047 H 282.3°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#999BBB
RGB	rgb(153, 155, 187)
HSL	hsl(236, 20%, 67%)
HSV	hsv(236, 18%, 73%)
CMYK	cmyk(18.2%, 17.1%, 0%, 26.7%)
CIE-LAB	lab(64.81, 6.03, -16.76)
CIE-LCH	lch(64.81, 17.81, 289.79°)
OKLab	oklab(69.88% 0.01 -0.0456)
OKLCH	oklch(69.88% 0.047 282.3)
XYZ	xyz(33.8258, 33.8024, 51.7465)
Luminance	0.3380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#999BBB #BBB999

analogous

#99ACBB #999BBB #A899BB

triadic

#999BBB #BB999B #9BBB99

tetradic

#999BBB #BB99AC #BBB999 #99BBA8

square

#999BBB #BB99AC #BBB999 #99BBA8

split-complementary

#999BBB #BBA899 #ACBB99

monochromatic

#575A83 #7477A3 #999BBB #BEBFD3 #E2E3EC

Accessibility & contrast

On white

2.71

#999BBB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#999BBB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #999BBB

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##999BBB	#FFFFFF	#000000	##000000
##999BBB	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#939EBC

Deuteranopia (green-blind)

#929CBA

Tritanopia (blue-blind)

#92A0A6

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #999bbb;
/* rgb */ color: rgb(153, 155, 187);
/* oklch */ color: oklch(69.9% 0.047 282.3);

Tailwind

colors: {
  custom: {
    50: '#b7b8cf',
    500: '#999bbb',
    950: '#000000',
  },
}

SCSS

$custom: #999bbb;
$custom-light: #b7b8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#999bbb",
  "rgb": {
    "r": 153,
    "g": 155,
    "b": 187
  },
  "hsl": {
    "h": 236.471,
    "s": 20,
    "l": 66.667
  },
  "oklch": {
    "l": 0.69881,
    "c": 0.04669,
    "h": 282.3
  },
  "luminance": 0.33803
}

Semantic roles & 50–950 ramp

primary

#999BBB

secondary

#DDDDD2

accent

#99479E

background

#FBFBFC

surface

#F6F6F9

border

#D0D0D2

text

#111113

muted

#808082

Preview Lab

Preview with #999BBB

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

Preview Lab → · Contrast checker → · Palette generator →