#999BE5
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.7% 0.107 282.1), rgb(153, 155, 229).
Aa
Black text reads best on this color (8.17:1).
About this color
#999BE5 is a medium-light, moderately saturated purple. In OKLCH its lightness is 72%, its chroma 0.107 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.036 away. Black text reads best on it, at 8.17:1.
| Hue family | Purples |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.17:1 |
| White text | 2.56:1 |
Values
| HEX | #999BE5 |
| RGB | rgb(153, 155, 229) |
| HSL | hsl(238, 59%, 75%) |
| OKLCH | oklch(71.7% 0.107 282.1) |
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 #999BE5 | 2.56:1 | Fails | Lc -55.3 | Large or bold text, headings |
| Black text on #999BE5 | 8.17:1 | AAA | Lc 53.8 | Large or bold text, headings |
| #999BE5 text on white | 2.56:1 | Fails | Lc 50.2 | Large or bold text, headings |
| #999BE5 text on black | 8.17:1 | AAA | Lc -51.7 | 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
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D5D7F2
oklch(88.6% 0.037 282.2)
-
Step 300
300
#B9BCEC
oklch(80.9% 0.068 282)
-
Step 400
400 (this color)
#999BE5
oklch(71.7% 0.107 282.1)
-
Step 500
500
#7E7DD9
oklch(63.1% 0.136 282.3)
-
Step 600
600
#6864C7
oklch(55.6% 0.149 282.2)
-
Step 700
700
#5753AC
oklch(49.2% 0.138 282.1)
-
Step 800
800
#47448B
oklch(42.7% 0.114 282.3)
-
Step 900
900
#3B3A6F
oklch(37.7% 0.089 282.1)
-
Step 950
950
#222241
oklch(26.9% 0.057 281.9)
#999BE5 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) | #85A4E8 | 0.032 |
| Deuteranopia (no green cones) | #819FE3 | 0.032 |
| Tritanopia (no blue cones) | #85A9B6 | 0.094 |
| Achromatopsia (no color) | #A1A1A1 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999BE5
#999BE5
oklch(71.7% 0.107 282.1)
- #B1A651
#B1A651
oklch(71.7% 0.108 102)
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 #999BE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.036
- Perrywinkle #8F8CE7 ΔE 0.044
- Pale Purple #B790D4 ΔE 0.051
- Lavender Blue #8B88F8 ΔE 0.066
- Cornflower Blue #6495ED ΔE 0.070
- Carolina Blue #8AB8FE ΔE 0.075
- Baby Purple #CA9BF7 ΔE 0.078
- Liliac #C48EFD ΔE 0.081
Use #999BE5 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.