#43376D
Closest named color: Dark Slate Blue (#483D8B). oklch(37.7% 0.09 291.7), rgb(67, 55, 109).
Aa
White text reads best on this color (10.46:1).
About this color
#43376D is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.090 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 10.46:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.00:1 |
| White text | 10.46:1 |
Values
| HEX | #43376D |
| RGB | rgb(67, 55, 109) |
| HSL | hsl(253, 33%, 32%) |
| OKLCH | oklch(37.7% 0.09 291.7) |
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 #43376D | 10.46:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #43376D | 2.00:1 | Fails | Lc 9.8 | Not readable |
| #43376D text on white | 10.46:1 | AAA | Lc 94.2 | Preferred for body text |
| #43376D text on black | 2.00:1 | Fails | Lc -8.4 | Not readable |
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 900.
-
Step 50
50
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#D9D5F1
oklch(88.5% 0.038 292.2)
-
Step 300
300
#C1B9EA
oklch(80.9% 0.069 292.3)
-
Step 400
400
#A294DF
oklch(70.8% 0.109 291.9)
-
Step 500
500
#8C78D6
oklch(63.2% 0.139 291.7)
-
Step 600
600
#775FC3
oklch(55.7% 0.15 291.8)
-
Step 700
700
#644EA8
oklch(49.2% 0.139 291.7)
-
Step 800
800
#514088
oklch(42.6% 0.116 291.6)
-
Step 900
900 (this color)
#43376D
oklch(37.7% 0.09 291.7)
-
Step 950
950
#272140
oklch(27.1% 0.057 291)
#43376D 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) | #24406F | 0.048 |
| Deuteranopia (no green cones) | #253E6C | 0.047 |
| Tritanopia (no blue cones) | #38424C | 0.076 |
| Achromatopsia (no color) | #3F3F3F | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43376D
#43376D
oklch(37.7% 0.09 291.7)
- #434500
#434500
oklch(37.6% 0.083 111.6)
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 #43376D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Twilight Blue #0A437A ΔE 0.069
- Dark Grey Blue #29465B ΔE 0.070
- Blueberry #464196 ΔE 0.071
- Prussian Blue #1D3557 ΔE 0.071
- Marine Blue #01386A ΔE 0.075
- Cobalt #1E488F ΔE 0.078
- Dark Blue Grey #1F3B4D ΔE 0.082
Use #43376D 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.