#43376B
Closest named color: Dark Slate Blue (#483D8B). oklch(37.6% 0.087 292.3), rgb(67, 55, 107).
Aa
White text reads best on this color (10.51:1).
About this color
#43376B is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.087 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 0.055 away. White text reads best on it, at 10.51:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.99:1 |
| White text | 10.51:1 |
Values
| HEX | #43376B |
| RGB | rgb(67, 55, 107) |
| HSL | hsl(254, 32%, 32%) |
| OKLCH | oklch(37.6% 0.087 292.3) |
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 #43376B | 10.51:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #43376B | 1.99:1 | Fails | Lc 9.6 | Not readable |
| #43376B text on white | 10.51:1 | AAA | Lc 94.3 | Preferred for body text |
| #43376B text on black | 1.99:1 | Fails | Lc -8.3 | 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
#D9D5F0
oklch(88.4% 0.037 292.4)
-
Step 300
300
#C1BAE8
oklch(81% 0.065 291.9)
-
Step 400
400
#A294DC
oklch(70.6% 0.104 292.4)
-
Step 500
500
#8C78D3
oklch(63% 0.134 292.2)
-
Step 600
600
#7760C0
oklch(55.7% 0.145 292.1)
-
Step 700
700
#644EA6
oklch(49% 0.136 292.1)
-
Step 800
800
#524186
oklch(42.8% 0.111 292.4)
-
Step 900
900 (this color)
#43376B
oklch(37.6% 0.087 292.3)
-
Step 950
950
#27213F
oklch(27% 0.055 291.5)
#43376B 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) | #25406D | 0.048 |
| Deuteranopia (no green cones) | #273E6A | 0.045 |
| Tritanopia (no blue cones) | #39414C | 0.071 |
| Achromatopsia (no color) | #3F3F3F | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43376B
#43376B
oklch(37.6% 0.087 292.3)
- #424500
#424500
oklch(37.5% 0.083 112.6)
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 #43376B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.068
- Twilight Blue #0A437A ΔE 0.069
- Prussian Blue #1D3557 ΔE 0.069
- Blueberry #464196 ΔE 0.074
- Marine Blue #01386A ΔE 0.075
- Dark Blue Grey #1F3B4D ΔE 0.080
- Charcoal #264653 ΔE 0.080
Use #43376B 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.