#99B5E6
Closest named color: Carolina Blue (#8AB8FE). oklch(77% 0.077 261.5), rgb(153, 181, 230).
Aa
Black text reads best on this color (10.10:1).
About this color
#99B5E6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.077 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.036 away. Black text reads best on it, at 10.10:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.10:1 |
| White text | 2.07:1 |
Values
| HEX | #99B5E6 |
| RGB | rgb(153, 181, 230) |
| HSL | hsl(218, 61%, 75%) |
| OKLCH | oklch(77% 0.077 261.5) |
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 #99B5E6 | 2.07:1 | Fails | Lc -45.1 | Large or bold text, headings |
| Black text on #99B5E6 | 10.10:1 | AAA | Lc 63.4 | Content text, not long reading |
| #99B5E6 text on white | 2.07:1 | Fails | Lc 40.6 | Non-text elements, placeholder text |
| #99B5E6 text on black | 10.10:1 | AAA | Lc -61.7 | 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
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF6
oklch(88.5% 0.042 261.7)
-
Step 300
300 (this color)
#99B5E6
oklch(77% 0.077 261.5)
-
Step 400
400
#75A0ED
oklch(70.7% 0.123 261.5)
-
Step 500
500
#5186E8
oklch(63.1% 0.158 261.6)
-
Step 600
600
#356DD6
oklch(55.5% 0.172 261.5)
-
Step 700
700
#285BB9
oklch(49.1% 0.159 261.3)
-
Step 800
800
#224B96
oklch(42.8% 0.132 261.2)
-
Step 900
900
#213F77
oklch(37.7% 0.102 261.6)
-
Step 950
950
#142546
oklch(26.9% 0.066 262.3)
#99B5E6 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) | #A4B8E8 | 0.017 |
| Deuteranopia (no green cones) | #9CB1E5 | 0.011 |
| Tritanopia (no blue cones) | #82BFC5 | 0.069 |
| Achromatopsia (no color) | #B4B4B4 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99B5E6
#99B5E6
oklch(77% 0.077 261.5)
- #CDB07B
#CDB07B
oklch(77% 0.077 82.1)
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 #99B5E6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.036
- Light Grey Blue #9DBCD4 ΔE 0.037
- Pastel Blue #A2BFFE ΔE 0.041
- Light Cornflower Blue #98C1D9 ΔE 0.043
- Cloudy Blue #ACC2D9 ΔE 0.052
- Lightblue #7BC8F6 ΔE 0.054
- Light Steel Blue #B0C4DE ΔE 0.056
- Sky #82CAFC ΔE 0.058
Use #99B5E6 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.