#99BEE9
Closest named color: Light Cornflower Blue (#98C1D9). oklch(79% 0.073 252.5), rgb(153, 190, 233).
Aa
Black text reads best on this color (10.89:1).
About this color
#99BEE9 is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.073 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.027 away. Black text reads best on it, at 10.89:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 10.89:1 |
| White text | 1.92:1 |
Values
| HEX | #99BEE9 |
| RGB | rgb(153, 190, 233) |
| HSL | hsl(212, 65%, 76%) |
| OKLCH | oklch(79% 0.073 252.5) |
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 #99BEE9 | 1.92:1 | Fails | Lc -41.2 | Non-text elements, placeholder text |
| Black text on #99BEE9 | 10.89:1 | AAA | Lc 67.0 | Content text, not long reading |
| #99BEE9 text on white | 1.92:1 | Fails | Lc 36.9 | Non-text elements, placeholder text |
| #99BEE9 text on black | 10.89:1 | AAA | Lc -65.6 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DBF4
oklch(88.4% 0.041 254)
-
Step 300
300 (this color)
#99BEE9
oklch(79% 0.073 252.5)
-
Step 400
400
#69A4E8
oklch(70.7% 0.118 252.9)
-
Step 500
500
#3C8CE1
oklch(63.2% 0.15 252.5)
-
Step 600
600
#0F74CF
oklch(55.7% 0.163 252.5)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#064F91
oklch(42.6% 0.126 252.7)
-
Step 900
900
#124273
oklch(37.5% 0.098 252.6)
-
Step 950
950
#0D2744
oklch(27% 0.063 253.3)
#99BEE9 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) | #AEBFEB | 0.027 |
| Deuteranopia (no green cones) | #A5B7E8 | 0.022 |
| Tritanopia (no blue cones) | #80C8CC | 0.064 |
| Achromatopsia (no color) | #BBBBBB | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99BEE9
#99BEE9
oklch(79% 0.073 252.5)
- #D8B486
#D8B486
oklch(79.1% 0.074 73.2)
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 #99BEE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.027
- Light Grey Blue #9DBCD4 ΔE 0.029
- Pastel Blue #A2BFFE ΔE 0.033
- Cloudy Blue #ACC2D9 ΔE 0.036
- Lightblue #7BC8F6 ΔE 0.038
- Light Steel Blue #B0C4DE ΔE 0.039
- Sky #82CAFC ΔE 0.039
- Carolina Blue #8AB8FE ΔE 0.042
Use #99BEE9 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.