#999CCF
Closest named color: Cool Gray (#8D99AE). oklch(70.9% 0.074 281.7), rgb(153, 156, 207).
Aa
Black text reads best on this color (8.01:1).
About this color
#999CCF is a medium-light, moderately saturated purple. In OKLCH its lightness is 71%, its chroma 0.074 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.052 away. Black text reads best on it, at 8.01:1.
| Hue family | Purples |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 8.01:1 |
| White text | 2.62:1 |
Values
| HEX | #999CCF |
| RGB | rgb(153, 156, 207) |
| HSL | hsl(237, 36%, 71%) |
| OKLCH | oklch(70.9% 0.074 281.7) |
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 #999CCF | 2.62:1 | Fails | Lc -56.3 | Large or bold text, headings |
| Black text on #999CCF | 8.01:1 | AAA | Lc 52.9 | Large or bold text, headings |
| #999CCF text on white | 2.62:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #999CCF text on black | 8.01:1 | AAA | Lc -50.8 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
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
#BBBEDF
oklch(81% 0.046 281.2)
-
Step 400
400 (this color)
#999CCF
oklch(70.9% 0.074 281.7)
-
Step 500
500
#8082C2
oklch(63.1% 0.096 281.9)
-
Step 600
600
#6A6BAE
oklch(55.6% 0.103 281.9)
-
Step 700
700
#585996
oklch(49.1% 0.097 281.5)
-
Step 800
800
#484979
oklch(42.7% 0.079 281.6)
-
Step 900
900
#3C3D62
oklch(37.6% 0.063 281.7)
-
Step 950
950
#232439
oklch(27% 0.039 281.4)
#999CCF 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) | #8EA2D1 | 0.020 |
| Deuteranopia (no green cones) | #8C9ECE | 0.018 |
| Tritanopia (no blue cones) | #8CA5AE | 0.065 |
| Achromatopsia (no color) | #A0A0A0 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999CCF
#999CCF
oklch(70.9% 0.074 281.7)
- #AAA36C
#AAA36C
oklch(70.8% 0.074 101.9)
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 #999CCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.052
- Pale Purple #B790D4 ΔE 0.053
- Bluey Grey #89A0B0 ΔE 0.057
- Cool Steel #97A7B3 ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.060
- Greyblue #77A1B5 ΔE 0.064
- Perrywinkle #8F8CE7 ΔE 0.065
- Periwinkle Blue #8F99FB ΔE 0.069
Use #999CCF 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.