#99BFDF
Closest named color: Light Cornflower Blue (#98C1D9). oklch(78.8% 0.061 244.1), rgb(153, 191, 223).
Aa
Black text reads best on this color (10.87:1).
About this color
#99BFDF is a light, muted blue. In OKLCH its lightness is 79%, its chroma 0.061 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.012 away. Black text reads best on it, at 10.87:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 10.87:1 |
| White text | 1.93:1 |
Values
| HEX | #99BFDF |
| RGB | rgb(153, 191, 223) |
| HSL | hsl(207, 52%, 74%) |
| OKLCH | oklch(78.8% 0.061 244.1) |
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 #99BFDF | 1.93:1 | Fails | Lc -41.3 | Non-text elements, placeholder text |
| Black text on #99BFDF | 10.87:1 | AAA | Lc 66.9 | Content text, not long reading |
| #99BFDF text on white | 1.93:1 | Fails | Lc 37.0 | Non-text elements, placeholder text |
| #99BFDF text on black | 10.87:1 | AAA | Lc -65.5 | 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
#E0EBF5
oklch(93.5% 0.018 245.4)
-
Step 200
200
#C7DCEF
oklch(88.5% 0.035 245.5)
-
Step 300
300 (this color)
#99BFDF
oklch(78.8% 0.061 244.1)
-
Step 400
400
#69A7D9
oklch(70.6% 0.098 244.1)
-
Step 500
500
#3A90CF
oklch(63% 0.125 244.1)
-
Step 600
600
#0479BC
oklch(55.5% 0.136 244.1)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#015384
oklch(42.7% 0.106 244.4)
-
Step 900
900
#114569
oklch(37.6% 0.081 243.9)
-
Step 950
950
#0D293E
oklch(27.1% 0.052 244.2)
#99BFDF 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) | #B2BFE1 | 0.032 |
| Deuteranopia (no green cones) | #A9B7DE | 0.027 |
| Tritanopia (no blue cones) | #83C7C9 | 0.051 |
| Achromatopsia (no color) | #BABABA | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99BFDF
#99BFDF
oklch(78.8% 0.061 244.1)
- #D6B291
#D6B291
oklch(78.7% 0.061 64.3)
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 #99BFDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.012
- Light Grey Blue #9DBCD4 ΔE 0.016
- Cloudy Blue #ACC2D9 ΔE 0.027
- Light Steel Blue #B0C4DE ΔE 0.033
- Sky Blue #87CEEB ΔE 0.041
- Lightblue #7BC8F6 ΔE 0.042
- Sky #82CAFC ΔE 0.046
- Light Sky Blue #87CEFA ΔE 0.048
Use #99BFDF 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.