#99BCDC
Closest named color: Light Grey Blue (#9DBCD4). oklch(78.1% 0.059 246.2), rgb(153, 188, 220).
Aa
Black text reads best on this color (10.58:1).
About this color
#99BCDC is a light, muted blue. In OKLCH its lightness is 78%, its chroma 0.059 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.012 away. Black text reads best on it, at 10.58:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.58:1 |
| White text | 1.98:1 |
Values
| HEX | #99BCDC |
| RGB | rgb(153, 188, 220) |
| HSL | hsl(209, 49%, 73%) |
| OKLCH | oklch(78.1% 0.059 246.2) |
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 #99BCDC | 1.98:1 | Fails | Lc -42.8 | Non-text elements, placeholder text |
| Black text on #99BCDC | 10.58:1 | AAA | Lc 65.6 | Content text, not long reading |
| #99BCDC text on white | 1.98:1 | Fails | Lc 38.3 | Non-text elements, placeholder text |
| #99BCDC text on black | 10.58:1 | AAA | Lc -64.1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEE
oklch(88.5% 0.033 245.3)
-
Step 300
300 (this color)
#99BCDC
oklch(78.1% 0.059 246.2)
-
Step 400
400
#6DA6D9
oklch(70.6% 0.096 246.6)
-
Step 500
500
#438FCE
oklch(63% 0.121 246.4)
-
Step 600
600
#1C78BB
oklch(55.5% 0.132 246.3)
-
Step 700
700
#0A65A2
oklch(49.2% 0.123 246.3)
-
Step 800
800
#105383
oklch(42.8% 0.101 246)
-
Step 900
900
#174569
oklch(37.8% 0.079 245.9)
-
Step 950
950
#0F283D
oklch(26.8% 0.05 246.5)
#99BCDC 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) | #AFBCDE | 0.028 |
| Deuteranopia (no green cones) | #A7B5DB | 0.024 |
| Tritanopia (no blue cones) | #85C3C6 | 0.049 |
| Achromatopsia (no color) | #B8B8B8 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99BCDC
#99BCDC
oklch(78.1% 0.059 246.2)
- #D2B190
#D2B190
oklch(78.1% 0.059 66.8)
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 #99BCDC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.012
- Light Cornflower Blue #98C1D9 ΔE 0.016
- Cloudy Blue #ACC2D9 ΔE 0.031
- Light Steel Blue #B0C4DE ΔE 0.038
- French Gray #ADB5BD ΔE 0.046
- Lightblue #7BC8F6 ΔE 0.047
- Sky Blue #87CEEB ΔE 0.048
- Pastel Blue #A2BFFE ΔE 0.051
Use #99BCDC 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.