#99B1E6
Closest named color: Carolina Blue (#8AB8FE). oklch(76.1% 0.081 265.6), rgb(153, 177, 230).
Aa
Black text reads best on this color (9.78:1).
About this color
#99B1E6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.081 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.037 away. Black text reads best on it, at 9.78:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.78:1 |
| White text | 2.14:1 |
Values
| HEX | #99B1E6 |
| RGB | rgb(153, 177, 230) |
| HSL | hsl(221, 61%, 75%) |
| OKLCH | oklch(76.1% 0.081 265.6) |
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 #99B1E6 | 2.14:1 | Fails | Lc -46.8 | Large or bold text, headings |
| Black text on #99B1E6 | 9.78:1 | AAA | Lc 61.8 | Content text, not long reading |
| #99B1E6 text on white | 2.14:1 | Fails | Lc 42.1 | Non-text elements, placeholder text |
| #99B1E6 text on black | 9.78:1 | AAA | Lc -60.1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300 (this color)
#99B1E6
oklch(76.1% 0.081 265.6)
-
Step 400
400
#7A9EF2
oklch(70.8% 0.13 265.6)
-
Step 500
500
#5983ED
oklch(63.2% 0.166 265.6)
-
Step 600
600
#406ADB
oklch(55.7% 0.179 265.5)
-
Step 700
700
#3257BE
oklch(49.1% 0.168 265.6)
-
Step 800
800
#2A489A
oklch(42.8% 0.139 265.7)
-
Step 900
900
#263D7A
oklch(37.7% 0.108 265.9)
-
Step 950
950
#162448
oklch(26.9% 0.07 265.9)
#99B1E6 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) | #A0B5E8 | 0.015 |
| Deuteranopia (no green cones) | #98AEE5 | 0.008 |
| Tritanopia (no blue cones) | #82BCC3 | 0.073 |
| Achromatopsia (no color) | #B1B1B1 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99B1E6
#99B1E6
oklch(76.1% 0.081 265.6)
- #C9AE75
#C9AE75
oklch(76.1% 0.081 85.2)
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 #99B1E6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.037
- Light Grey Blue #9DBCD4 ΔE 0.046
- Pastel Blue #A2BFFE ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.053
- Cloudy Blue #ACC2D9 ΔE 0.062
- Lightblue #7BC8F6 ΔE 0.063
- Light Steel Blue #B0C4DE ΔE 0.066
- Sky #82CAFC ΔE 0.066
Use #99B1E6 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.