#99BFD3
Closest named color: Light Cornflower Blue (#98C1D9). oklch(78.4% 0.05 231.1), rgb(153, 191, 211).
Aa
Black text reads best on this color (10.74:1).
About this color
#99BFD3 is a light, muted blue. In OKLCH its lightness is 78%, its chroma 0.050 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.009 away. Black text reads best on it, at 10.74:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 10.74:1 |
| White text | 1.95:1 |
Values
| HEX | #99BFD3 |
| RGB | rgb(153, 191, 211) |
| HSL | hsl(201, 40%, 71%) |
| OKLCH | oklch(78.4% 0.05 231.1) |
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 #99BFD3 | 1.95:1 | Fails | Lc -41.9 | Non-text elements, placeholder text |
| Black text on #99BFD3 | 10.74:1 | AAA | Lc 66.3 | Content text, not long reading |
| #99BFD3 text on white | 1.95:1 | Fails | Lc 37.6 | Non-text elements, placeholder text |
| #99BFD3 text on black | 10.74:1 | AAA | Lc -64.9 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300 (this color)
#99BFD3
oklch(78.4% 0.05 231.1)
-
Step 400
400
#6BAAC9
oklch(70.7% 0.079 230.7)
-
Step 500
500
#3D94BC
oklch(63.1% 0.102 231.5)
-
Step 600
600
#087EA8
oklch(55.7% 0.11 231)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#035775
oklch(42.8% 0.085 230.7)
-
Step 900
900
#12485E
oklch(37.8% 0.066 229.9)
-
Step 950
950
#0D2A37
oklch(27% 0.042 230.5)
#99BFD3 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) | #B5BDD4 | 0.035 |
| Deuteranopia (no green cones) | #ADB6D3 | 0.033 |
| Tritanopia (no blue cones) | #87C5C5 | 0.037 |
| Achromatopsia (no color) | #B9B9B9 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99BFD3
#99BFD3
oklch(78.4% 0.05 231.1)
- #D4B09C
#D4B09C
oklch(78.4% 0.05 50.7)
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 #99BFD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.009
- Light Grey Blue #9DBCD4 ΔE 0.010
- Cloudy Blue #ACC2D9 ΔE 0.027
- Light Steel Blue #B0C4DE ΔE 0.036
- French Gray #ADB5BD ΔE 0.039
- Sky Blue #87CEEB ΔE 0.045
- Light Blue Grey #B7C9E2 ΔE 0.051
- Lightblue #7BC8F6 ΔE 0.054
Use #99BFD3 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.