#999DD0
Closest named color: Cool Gray (#8D99AE). oklch(71.1% 0.074 280.8), rgb(153, 157, 208).
Aa
Black text reads best on this color (8.08:1).
About this color
#999DD0 is a medium-light, moderately saturated purple. In OKLCH its lightness is 71%, its chroma 0.074 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.054 away. Black text reads best on it, at 8.08:1.
| Hue family | Purples |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 8.08:1 |
| White text | 2.59:1 |
Values
| HEX | #999DD0 |
| RGB | rgb(153, 157, 208) |
| HSL | hsl(236, 37%, 71%) |
| OKLCH | oklch(71.1% 0.074 280.8) |
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 #999DD0 | 2.59:1 | Fails | Lc -55.8 | Large or bold text, headings |
| Black text on #999DD0 | 8.08:1 | AAA | Lc 53.3 | Large or bold text, headings |
| #999DD0 text on white | 2.59:1 | Fails | Lc 50.7 | Large or bold text, headings |
| #999DD0 text on black | 8.08:1 | AAA | Lc -51.2 | 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
#D5D8EA
oklch(88.5% 0.025 278.3)
-
Step 300
300
#BBBEDF
oklch(81% 0.046 281.2)
-
Step 400
400 (this color)
#999DD0
oklch(71.1% 0.074 280.8)
-
Step 500
500
#7F83C2
oklch(63.2% 0.094 280.5)
-
Step 600
600
#696BAE
oklch(55.5% 0.103 281.2)
-
Step 700
700
#575996
oklch(49% 0.097 280.8)
-
Step 800
800
#474979
oklch(42.6% 0.079 280.7)
-
Step 900
900
#3C3D62
oklch(37.6% 0.063 281.7)
-
Step 950
950
#232439
oklch(27% 0.039 281.4)
#999DD0 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) | #8FA3D2 | 0.019 |
| Deuteranopia (no green cones) | #8C9FCF | 0.018 |
| Tritanopia (no blue cones) | #8CA6AF | 0.065 |
| Achromatopsia (no color) | #A1A1A1 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999DD0
#999DD0
oklch(71.1% 0.074 280.8)
- #ACA46D
#ACA46D
oklch(71.2% 0.074 101)
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 #999DD0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.054
- Pale Purple #B790D4 ΔE 0.054
- Bluey Grey #89A0B0 ΔE 0.057
- Cool Steel #97A7B3 ΔE 0.058
- Bluegrey #85A3B2 ΔE 0.060
- Greyblue #77A1B5 ΔE 0.064
- Perrywinkle #8F8CE7 ΔE 0.066
- Periwinkle Blue #8F99FB ΔE 0.068
Use #999DD0 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.