#99B5FA
Closest named color: Carolina Blue (#8AB8FE). oklch(77.8% 0.104 267), rgb(153, 181, 250).
Aa
Black text reads best on this color (10.34:1).
About this color
#99B5FA is a medium-light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.104 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.018 away. Black text reads best on it, at 10.34:1.
| Hue family | Blues |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.34:1 |
| White text | 2.03:1 |
Values
| HEX | #99B5FA |
| RGB | rgb(153, 181, 250) |
| HSL | hsl(223, 91%, 79%) |
| OKLCH | oklch(77.8% 0.104 267) |
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 #99B5FA | 2.03:1 | Fails | Lc -43.9 | Non-text elements, placeholder text |
| Black text on #99B5FA | 10.34:1 | AAA | Lc 64.5 | Content text, not long reading |
| #99B5FA text on white | 2.03:1 | Fails | Lc 39.4 | Non-text elements, placeholder text |
| #99B5FA text on black | 10.34:1 | AAA | Lc -62.9 | Content text, not long reading |
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 300.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300 (this color)
#99B5FA
oklch(77.8% 0.104 267)
-
Step 400
400
#769BFF
oklch(70.7% 0.152 267.2)
-
Step 500
500
#547EFF
oklch(63.1% 0.197 267)
-
Step 600
600
#385FF8
oklch(55.6% 0.232 267.1)
-
Step 700
700
#2C4DD8
oklch(49.1% 0.215 267.1)
-
Step 800
800
#2440AE
oklch(42.6% 0.178 267.1)
-
Step 900
900
#21398A
oklch(37.8% 0.138 267)
-
Step 950
950
#132251
oklch(27% 0.088 267)
#99B5FA 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) | #9DBBFD | 0.017 |
| Deuteranopia (no green cones) | #94B2F8 | 0.011 |
| Tritanopia (no blue cones) | #7AC3CD | 0.093 |
| Achromatopsia (no color) | #B6B6B6 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99B5FA
#99B5FA
oklch(77.8% 0.104 267)
- #D3B365
#D3B365
oklch(77.8% 0.104 87.6)
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 #99B5FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.018
- Pastel Blue #A2BFFE ΔE 0.029
- Sky #82CAFC ΔE 0.058
- Lightblue #7BC8F6 ΔE 0.059
- Light Grey Blue #9DBCD4 ΔE 0.064
- Light Cornflower Blue #98C1D9 ΔE 0.066
- Light Sky Blue #87CEFA ΔE 0.067
- Baby Blue #A2CFFE ΔE 0.070
Use #99B5FA 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.