#99AED0
Closest named color: Light Grey Blue (#9DBCD4). oklch(74.6% 0.055 260), rgb(153, 174, 208).
Aa
Black text reads best on this color (9.31:1).
About this color
#99AED0 is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.055 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.038 away. Black text reads best on it, at 9.31:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.31:1 |
| White text | 2.25:1 |
Values
| HEX | #99AED0 |
| RGB | rgb(153, 174, 208) |
| HSL | hsl(217, 37%, 71%) |
| OKLCH | oklch(74.6% 0.055 260) |
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 #99AED0 | 2.25:1 | Fails | Lc -49.2 | Large or bold text, headings |
| Black text on #99AED0 | 9.31:1 | AAA | Lc 59.6 | Large or bold text, headings |
| #99AED0 text on white | 2.25:1 | Fails | Lc 44.4 | Non-text elements, placeholder text |
| #99AED0 text on black | 9.31:1 | AAA | Lc -57.7 | 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
#D2DAE6
oklch(88.6% 0.019 258.4)
-
Step 300
300
#B4C1D7
oklch(80.8% 0.034 261)
-
Step 400
400 (this color)
#99AED0
oklch(74.6% 0.055 260)
-
Step 500
500
#718AB4
oklch(63% 0.07 260.6)
-
Step 600
600
#5974A0
oklch(55.6% 0.076 259.9)
-
Step 700
700
#496189
oklch(49.1% 0.071 260.3)
-
Step 800
800
#3C4F6F
oklch(42.6% 0.059 260.6)
-
Step 900
900
#33425A
oklch(37.7% 0.046 259.6)
-
Step 950
950
#1E2735
oklch(27.1% 0.029 259.1)
#99AED0 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) | #A3B0D2 | 0.015 |
| Deuteranopia (no green cones) | #9DAACF | 0.011 |
| Tritanopia (no blue cones) | #8AB5B9 | 0.048 |
| Achromatopsia (no color) | #ADADAD | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99AED0
#99AED0
oklch(74.6% 0.055 260)
- #BFAA86
#BFAA86
oklch(74.7% 0.055 81)
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 #99AED0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.038
- Cool Steel #97A7B3 ΔE 0.042
- French Gray #ADB5BD ΔE 0.046
- Light Cornflower Blue #98C1D9 ΔE 0.050
- Dark Gray #A9A9A9 ΔE 0.056
- Bluegrey #85A3B2 ΔE 0.056
- Bluey Grey #89A0B0 ΔE 0.059
- Cloudy Blue #ACC2D9 ΔE 0.061
Use #99AED0 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.