#99A4E1
Closest named color: Periwinkle Blue (#8F99FB). oklch(73.3% 0.089 276.1), rgb(153, 164, 225).
Aa
Black text reads best on this color (8.75:1).
About this color
#99A4E1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.089 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.056 away. Black text reads best on it, at 8.75:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.75:1 |
| White text | 2.39:1 |
Values
| HEX | #99A4E1 |
| RGB | rgb(153, 164, 225) |
| HSL | hsl(231, 55%, 74%) |
| OKLCH | oklch(73.3% 0.089 276.1) |
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 #99A4E1 | 2.39:1 | Fails | Lc -52.2 | Large or bold text, headings |
| Black text on #99A4E1 | 8.75:1 | AAA | Lc 56.8 | Large or bold text, headings |
| #99A4E1 text on white | 2.39:1 | Fails | Lc 47.2 | Large or bold text, headings |
| #99A4E1 text on black | 8.75:1 | AAA | Lc -54.8 | 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
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300
#B6BEE5
oklch(80.8% 0.056 276)
-
Step 400
400 (this color)
#99A4E1
oklch(73.3% 0.089 276.1)
-
Step 500
500
#7782CE
oklch(63% 0.115 276.3)
-
Step 600
600
#616BBB
oklch(55.7% 0.124 276.2)
-
Step 700
700
#5059A1
oklch(49.2% 0.115 276)
-
Step 800
800
#414983
oklch(42.7% 0.096 275.6)
-
Step 900
900
#373D69
oklch(37.6% 0.075 276.3)
-
Step 950
950
#20243D
oklch(26.9% 0.047 275.9)
#99A4E1 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) | #91AAE4 | 0.017 |
| Deuteranopia (no green cones) | #8DA5E0 | 0.016 |
| Tritanopia (no blue cones) | #86B0B9 | 0.081 |
| Achromatopsia (no color) | #A7A7A7 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99A4E1
#99A4E1
oklch(73.3% 0.089 276.1)
- #B9A965
#B9A965
oklch(73.3% 0.09 96.5)
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 #99A4E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.056
- Carolina Blue #8AB8FE ΔE 0.058
- Pale Purple #B790D4 ΔE 0.062
- Perrywinkle #8F8CE7 ΔE 0.069
- Cool Steel #97A7B3 ΔE 0.072
- Light Grey Blue #9DBCD4 ΔE 0.074
- Pastel Blue #A2BFFE ΔE 0.076
- Bluey Grey #89A0B0 ΔE 0.076
Use #99A4E1 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.