#999CE0
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.6% 0.099 281.6), rgb(153, 156, 224).
Aa
Black text reads best on this color (8.18:1).
About this color
#999CE0 is a medium-light, moderately saturated purple. In OKLCH its lightness is 72%, its chroma 0.099 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.044 away. Black text reads best on it, at 8.18:1.
| Hue family | Purples |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.18:1 |
| White text | 2.56:1 |
Values
| HEX | #999CE0 |
| RGB | rgb(153, 156, 224) |
| HSL | hsl(237, 53%, 74%) |
| OKLCH | oklch(71.6% 0.099 281.6) |
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 #999CE0 | 2.56:1 | Fails | Lc -55.3 | Large or bold text, headings |
| Black text on #999CE0 | 8.18:1 | AAA | Lc 53.9 | Large or bold text, headings |
| #999CE0 text on white | 2.56:1 | Fails | Lc 50.2 | Large or bold text, headings |
| #999CE0 text on black | 8.18:1 | AAA | Lc -51.8 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D5D7F0
oklch(88.5% 0.034 282)
-
Step 300
300
#B9BDE8
oklch(81% 0.061 280.8)
-
Step 400
400 (this color)
#999CE0
oklch(71.6% 0.099 281.6)
-
Step 500
500
#7E7FD3
oklch(63.2% 0.125 281.7)
-
Step 600
600
#6866C1
oklch(55.6% 0.138 281.9)
-
Step 700
700
#5655A6
oklch(49.1% 0.127 281.2)
-
Step 800
800
#474687
oklch(42.8% 0.105 281.7)
-
Step 900
900
#3B3B6C
oklch(37.7% 0.083 281.7)
-
Step 950
950
#22233F
oklch(27% 0.052 280.8)
#999CE0 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) | #88A4E3 | 0.028 |
| Deuteranopia (no green cones) | #859FDE | 0.027 |
| Tritanopia (no blue cones) | #87A9B4 | 0.087 |
| Achromatopsia (no color) | #A2A2A2 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999CE0
#999CE0
oklch(71.6% 0.099 281.6)
- #B0A659
#B0A659
oklch(71.7% 0.099 102)
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 #999CE0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.044
- Perrywinkle #8F8CE7 ΔE 0.049
- Pale Purple #B790D4 ΔE 0.051
- Cornflower Blue #6495ED ΔE 0.073
- Lavender Blue #8B88F8 ΔE 0.073
- Carolina Blue #8AB8FE ΔE 0.075
- Cool Gray #8D99AE ΔE 0.077
- Bluey Grey #89A0B0 ΔE 0.080
Use #999CE0 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.