#999BEC
Closest named color: Periwinkle Blue (#8F99FB). oklch(72% 0.117 282), rgb(153, 155, 236).
Aa
Black text reads best on this color (8.25:1).
About this color
#999BEC is a medium-light, moderately saturated purple. In OKLCH its lightness is 72%, its chroma 0.117 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.027 away. Black text reads best on it, at 8.25:1.
| Hue family | Purples |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.25:1 |
| White text | 2.54:1 |
Values
| HEX | #999BEC |
| RGB | rgb(153, 155, 236) |
| HSL | hsl(239, 69%, 76%) |
| OKLCH | oklch(72% 0.117 282) |
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 #999BEC | 2.54:1 | Fails | Lc -54.9 | Large or bold text, headings |
| Black text on #999BEC | 8.25:1 | AAA | Lc 54.2 | Large or bold text, headings |
| #999BEC text on white | 2.54:1 | Fails | Lc 49.8 | Large or bold text, headings |
| #999BEC text on black | 8.25:1 | AAA | Lc -52.2 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F8
oklch(93.5% 0.022 283.1)
-
Step 200
200
#D4D6F4
oklch(88.4% 0.041 282.5)
-
Step 300
300
#B8BBEF
oklch(80.8% 0.073 282)
-
Step 400
400 (this color)
#999BEC
oklch(72% 0.117 282)
-
Step 500
500
#7D7BE0
oklch(63.1% 0.149 282.1)
-
Step 600
600
#6762CE
oklch(55.6% 0.162 281.8)
-
Step 700
700
#5650B3
oklch(49.1% 0.152 281.9)
-
Step 800
800
#464291
oklch(42.7% 0.126 281.9)
-
Step 900
900
#3A3973
oklch(37.7% 0.097 281.5)
-
Step 950
950
#222244
oklch(27.1% 0.062 281.4)
#999BEC 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) | #82A5EF | 0.036 |
| Deuteranopia (no green cones) | #7EA0EA | 0.036 |
| Tritanopia (no blue cones) | #82AAB9 | 0.101 |
| Achromatopsia (no color) | #A2A2A2 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999BEC
#999BEC
oklch(72% 0.117 282)
- #B3A748
#B3A748
oklch(72% 0.117 102.2)
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 #999BEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.027
- Perrywinkle #8F8CE7 ΔE 0.042
- Pale Purple #B790D4 ΔE 0.056
- Lavender Blue #8B88F8 ΔE 0.060
- Cornflower Blue #6495ED ΔE 0.069
- Carolina Blue #8AB8FE ΔE 0.074
- Baby Purple #CA9BF7 ΔE 0.075
- Liliac #C48EFD ΔE 0.076
Use #999BEC 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.