#99ADD2
Closest named color: Light Grey Blue (#9DBCD4). oklch(74.5% 0.058 262.7), rgb(153, 173, 210).
Aa
Black text reads best on this color (9.26:1).
About this color
#99ADD2 is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.058 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.041 away. Black text reads best on it, at 9.26:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.26:1 |
| White text | 2.26:1 |
Values
| HEX | #99ADD2 |
| RGB | rgb(153, 173, 210) |
| HSL | hsl(219, 39%, 71%) |
| OKLCH | oklch(74.5% 0.058 262.7) |
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 #99ADD2 | 2.26:1 | Fails | Lc -49.5 | Large or bold text, headings |
| Black text on #99ADD2 | 9.26:1 | AAA | Lc 59.3 | Large or bold text, headings |
| #99ADD2 text on white | 2.26:1 | Fails | Lc 44.7 | Non-text elements, placeholder text |
| #99ADD2 text on black | 9.26:1 | AAA | Lc -57.4 | Large or bold text, headings |
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 400.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D2D9E7
oklch(88.4% 0.021 264.5)
-
Step 300
300
#B4C1D9
oklch(80.9% 0.037 262.8)
-
Step 400
400 (this color)
#99ADD2
oklch(74.5% 0.058 262.7)
-
Step 500
500
#718AB7
oklch(63.2% 0.074 261.9)
-
Step 600
600
#5A73A3
oklch(55.6% 0.081 262.9)
-
Step 700
700
#4A608C
oklch(49.1% 0.076 263.5)
-
Step 800
800
#3D4F71
oklch(42.8% 0.061 262.6)
-
Step 900
900
#34425C
oklch(37.9% 0.048 262.4)
-
Step 950
950
#1E2636
oklch(26.9% 0.032 263.8)
#99ADD2 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) | #A1AFD4 | 0.013 |
| Deuteranopia (no green cones) | #9BAAD1 | 0.008 |
| Tritanopia (no blue cones) | #8AB4B9 | 0.051 |
| Achromatopsia (no color) | #ACACAC | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ADD2
#99ADD2
oklch(74.5% 0.058 262.7)
- #BFAA83
#BFAA83
oklch(74.6% 0.058 82.8)
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 #99ADD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.041
- Cool Steel #97A7B3 ΔE 0.044
- French Gray #ADB5BD ΔE 0.050
- Light Cornflower Blue #98C1D9 ΔE 0.053
- Bluegrey #85A3B2 ΔE 0.058
- Dark Gray #A9A9A9 ΔE 0.059
- Bluey Grey #89A0B0 ΔE 0.060
- Carolina Blue #8AB8FE ΔE 0.063
Use #99ADD2 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.