#A4ACC4
Closest named color: Cool Steel (#97A7B3). oklch(74.6% 0.036 270.9), rgb(164, 172, 196).
Aa
Black text reads best on this color (9.27:1).
About this color
#A4ACC4 is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.036 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.032 away. Black text reads best on it, at 9.27:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.27:1 |
| White text | 2.26:1 |
Values
| HEX | #A4ACC4 |
| RGB | rgb(164, 172, 196) |
| HSL | hsl(225, 21%, 71%) |
| OKLCH | oklch(74.6% 0.036 270.9) |
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 #A4ACC4 | 2.26:1 | Fails | Lc -49.5 | Large or bold text, headings |
| Black text on #A4ACC4 | 9.27:1 | AAA | Lc 59.3 | Large or bold text, headings |
| #A4ACC4 text on white | 2.26:1 | Fails | Lc 44.6 | Non-text elements, placeholder text |
| #A4ACC4 text on black | 9.27:1 | AAA | Lc -57.5 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E2
oklch(88.6% 0.013 271.3)
-
Step 300
300
#BBC0D0
oklch(80.9% 0.023 272)
-
Step 400
400 (this color)
#A4ACC4
oklch(74.6% 0.036 270.9)
-
Step 500
500
#7F88A6
oklch(63% 0.046 271.9)
-
Step 600
600
#687291
oklch(55.5% 0.05 270.8)
-
Step 700
700
#57607B
oklch(49.2% 0.045 270.3)
-
Step 800
800
#474E64
oklch(42.7% 0.038 271)
-
Step 900
900
#3C4152
oklch(37.8% 0.03 272.1)
-
Step 950
950
#232630
oklch(27% 0.019 272)
#A4ACC4 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) | #A5AEC5 | 0.006 |
| Deuteranopia (no green cones) | #A3ABC3 | 0.003 |
| Tritanopia (no blue cones) | #9DB0B4 | 0.031 |
| Achromatopsia (no color) | #ACACAC | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4ACC4
#A4ACC4
oklch(74.6% 0.036 270.9)
- #B5AC94
#B5AC94
oklch(74.5% 0.035 89.9)
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 #A4ACC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.032
- French Gray #ADB5BD ΔE 0.033
- Dark Gray #A9A9A9 ΔE 0.037
- Light Grey Blue #9DBCD4 ΔE 0.042
- Cool Grey #95A3A6 ΔE 0.051
- Pewter #96A8A1 ΔE 0.055
- Bluegrey #85A3B2 ΔE 0.055
- Light Cornflower Blue #98C1D9 ΔE 0.056
Use #A4ACC4 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.