#999BCC
Closest named color: Cool Gray (#8D99AE). oklch(70.6% 0.071 282.6), rgb(153, 155, 204).
Aa
Black text reads best on this color (7.91:1).
About this color
#999BCC is a medium-light, moderately saturated purple. In OKLCH its lightness is 71%, its chroma 0.071 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.048 away. Black text reads best on it, at 7.91:1.
| Hue family | Purples |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.91:1 |
| White text | 2.65:1 |
Values
| HEX | #999BCC |
| RGB | rgb(153, 155, 204) |
| HSL | hsl(238, 33%, 70%) |
| OKLCH | oklch(70.6% 0.071 282.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #999BCC | 2.65:1 | Fails | Lc -56.8 | Large or bold text, headings |
| Black text on #999BCC | 7.91:1 | AAA | Lc 52.4 | Large or bold text, headings |
| #999BCC text on white | 2.65:1 | Fails | Lc 51.6 | Large or bold text, headings |
| #999BCC text on black | 7.91:1 | AAA | Lc -50.3 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D7EA
oklch(88.4% 0.026 283.4)
-
Step 300
300
#BCBEDD
oklch(81% 0.044 282.5)
-
Step 400
400 (this color)
#999BCC
oklch(70.6% 0.071 282.6)
-
Step 500
500
#8182BF
oklch(63% 0.091 282.7)
-
Step 600
600
#6B6BAC
oklch(55.6% 0.1 282.7)
-
Step 700
700
#595993
oklch(49% 0.092 282.5)
-
Step 800
800
#494978
oklch(42.7% 0.077 282.6)
-
Step 900
900
#3D3D60
oklch(37.6% 0.059 283.2)
-
Step 950
950
#242438
oklch(27% 0.037 283.7)
#999BCC with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #8EA1CE | 0.020 |
| Deuteranopia (no green cones) | #8C9DCB | 0.018 |
| Tritanopia (no blue cones) | #8DA4AC | 0.063 |
| Achromatopsia (no color) | #9F9F9F | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999BCC
#999BCC
oklch(70.6% 0.071 282.6)
- #A8A26E
#A8A26E
oklch(70.5% 0.071 102.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #999BCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.048
- Bluey Grey #89A0B0 ΔE 0.054
- Pale Purple #B790D4 ΔE 0.054
- Cool Steel #97A7B3 ΔE 0.057
- Bluegrey #85A3B2 ΔE 0.058
- Greyblue #77A1B5 ΔE 0.062
- Perrywinkle #8F8CE7 ΔE 0.066
- Heather #A484AC ΔE 0.066
Use #999BCC in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.