#99A3CD
Closest named color: Cool Steel (#97A7B3). oklch(72.2% 0.062 274.3), rgb(153, 163, 205).
Aa
Black text reads best on this color (8.47:1).
About this color
#99A3CD is a medium-light, muted blue. In OKLCH its lightness is 72%, its chroma 0.062 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.044 away. Black text reads best on it, at 8.47:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.47:1 |
| White text | 2.47:1 |
Values
| HEX | #99A3CD |
| RGB | rgb(153, 163, 205) |
| HSL | hsl(228, 34%, 70%) |
| OKLCH | oklch(72.2% 0.062 274.3) |
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 #99A3CD | 2.47:1 | Fails | Lc -53.7 | Large or bold text, headings |
| Black text on #99A3CD | 8.47:1 | AAA | Lc 55.3 | Large or bold text, headings |
| #99A3CD text on white | 2.47:1 | Fails | Lc 48.7 | Large or bold text, headings |
| #99A3CD text on black | 8.47:1 | AAA | Lc -53.3 | 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
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E8
oklch(88.4% 0.022 274.7)
-
Step 300
300
#B8BFDA
oklch(80.8% 0.039 274)
-
Step 400
400 (this color)
#99A3CD
oklch(72.2% 0.062 274.3)
-
Step 500
500
#7B86BA
oklch(63.1% 0.079 274.7)
-
Step 600
600
#646FA6
oklch(55.6% 0.087 274.6)
-
Step 700
700
#535D8E
oklch(49.1% 0.08 274.3)
-
Step 800
800
#444C73
oklch(42.7% 0.066 274.4)
-
Step 900
900
#393F5D
oklch(37.6% 0.052 274.9)
-
Step 950
950
#212537
oklch(26.9% 0.034 274.3)
#99A3CD 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) | #97A7CF | 0.010 |
| Deuteranopia (no green cones) | #93A3CC | 0.008 |
| Tritanopia (no blue cones) | #8CABB1 | 0.056 |
| Achromatopsia (no color) | #A4A4A4 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99A3CD
#99A3CD
oklch(72.2% 0.062 274.3)
- #B2A579
#B2A579
oklch(72.2% 0.062 93.6)
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 #99A3CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.044
- Bluey Grey #89A0B0 ΔE 0.049
- Bluegrey #85A3B2 ΔE 0.050
- Cool Gray #8D99AE ΔE 0.052
- Greyblue #77A1B5 ΔE 0.059
- Cool Grey #95A3A6 ΔE 0.059
- Dark Gray #A9A9A9 ΔE 0.063
- Pale Purple #B790D4 ΔE 0.066
Use #99A3CD 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.