#99BFDA
Closest named color: Light Cornflower Blue (#98C1D9). oklch(78.6% 0.056 239.4), rgb(153, 191, 218).
Aa
Black text reads best on this color (10.81:1).
About this color
#99BFDA is a light, muted blue. In OKLCH its lightness is 79%, its chroma 0.056 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.006 away. Black text reads best on it, at 10.81:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 10.81:1 |
| White text | 1.94:1 |
Values
| HEX | #99BFDA |
| RGB | rgb(153, 191, 218) |
| HSL | hsl(205, 47%, 73%) |
| OKLCH | oklch(78.6% 0.056 239.4) |
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 #99BFDA | 1.94:1 | Fails | Lc -41.6 | Non-text elements, placeholder text |
| Black text on #99BFDA | 10.81:1 | AAA | Lc 66.7 | Content text, not long reading |
| #99BFDA text on white | 1.94:1 | Fails | Lc 37.2 | Non-text elements, placeholder text |
| #99BFDA text on black | 10.81:1 | AAA | Lc -65.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF4
oklch(93.7% 0.016 239.1)
-
Step 200
200
#C7DDEC
oklch(88.6% 0.031 237.6)
-
Step 300
300 (this color)
#99BFDA
oklch(78.6% 0.056 239.4)
-
Step 400
400
#6AA8D3
oklch(70.6% 0.09 240)
-
Step 500
500
#3B92C7
oklch(63.1% 0.115 239.2)
-
Step 600
600
#057BB4
oklch(55.5% 0.125 239.6)
-
Step 700
700
#006899
oklch(49.2% 0.111 239.3)
-
Step 800
800
#02557D
oklch(42.8% 0.095 238.8)
-
Step 900
900
#124665
oklch(37.7% 0.075 239.9)
-
Step 950
950
#0D293B
oklch(26.9% 0.047 240.1)
#99BFDA 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) | #B3BEDB | 0.033 |
| Deuteranopia (no green cones) | #ABB7DA | 0.029 |
| Tritanopia (no blue cones) | #85C6C8 | 0.044 |
| Achromatopsia (no color) | #BABABA | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99BFDA
#99BFDA
oklch(78.6% 0.056 239.4)
- #D5B196
#D5B196
oklch(78.5% 0.056 58.7)
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 #99BFDA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.006
- Light Grey Blue #9DBCD4 ΔE 0.010
- Cloudy Blue #ACC2D9 ΔE 0.026
- Light Steel Blue #B0C4DE ΔE 0.033
- Sky Blue #87CEEB ΔE 0.042
- French Gray #ADB5BD ΔE 0.045
- Lightblue #7BC8F6 ΔE 0.047
- Light Blue Grey #B7C9E2 ΔE 0.049
Use #99BFDA 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.