#99B4E9
Closest named color: Carolina Blue (#8AB8FE). oklch(76.9% 0.082 263.6), rgb(153, 180, 233).
Aa
Black text reads best on this color (10.05:1).
About this color
#99B4E9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.082 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.032 away. Black text reads best on it, at 10.05:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.05:1 |
| White text | 2.08:1 |
Values
| HEX | #99B4E9 |
| RGB | rgb(153, 180, 233) |
| HSL | hsl(220, 65%, 76%) |
| OKLCH | oklch(76.9% 0.082 263.6) |
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 #99B4E9 | 2.08:1 | Fails | Lc -45.4 | Large or bold text, headings |
| Black text on #99B4E9 | 10.05:1 | AAA | Lc 63.2 | Content text, not long reading |
| #99B4E9 text on white | 2.08:1 | Fails | Lc 40.8 | Non-text elements, placeholder text |
| #99B4E9 text on black | 10.05:1 | AAA | Lc -61.5 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CADAF8
oklch(88.6% 0.045 263.1)
-
Step 300
300 (this color)
#99B4E9
oklch(76.9% 0.082 263.6)
-
Step 400
400
#769FF2
oklch(70.8% 0.13 263.4)
-
Step 500
500
#5384EE
oklch(63.1% 0.168 263.6)
-
Step 600
600
#386BDC
oklch(55.6% 0.182 263.4)
-
Step 700
700
#2B58BF
oklch(49.1% 0.17 263.6)
-
Step 800
800
#24499B
oklch(42.8% 0.141 263.4)
-
Step 900
900
#223E7B
oklch(37.8% 0.109 263.5)
-
Step 950
950
#142548
oklch(27.1% 0.069 263.1)
#99B4E9 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) | #A2B7EB | 0.015 |
| Deuteranopia (no green cones) | #9AB0E8 | 0.010 |
| Tritanopia (no blue cones) | #81BFC6 | 0.073 |
| Achromatopsia (no color) | #B3B3B3 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99B4E9
#99B4E9
oklch(76.9% 0.082 263.6)
- #CDB077
#CDB077
oklch(76.9% 0.082 83.7)
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 #99B4E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.032
- Pastel Blue #A2BFFE ΔE 0.040
- Light Grey Blue #9DBCD4 ΔE 0.043
- Light Cornflower Blue #98C1D9 ΔE 0.048
- Lightblue #7BC8F6 ΔE 0.056
- Cloudy Blue #ACC2D9 ΔE 0.057
- Sky #82CAFC ΔE 0.059
- Light Steel Blue #B0C4DE ΔE 0.060
Use #99B4E9 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.