#33327D
Closest named color: Dark Slate Blue (#483D8B). oklch(36.4% 0.124 278.9), rgb(51, 50, 125).
Aa
White text reads best on this color (11.09:1).
About this color
#33327D is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.124 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 11.09:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.89:1 |
| White text | 11.09:1 |
Values
| HEX | #33327D |
| RGB | rgb(51, 50, 125) |
| HSL | hsl(241, 43%, 34%) |
| OKLCH | oklch(36.4% 0.124 278.9) |
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 #33327D | 11.09:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #33327D | 1.89:1 | Fails | Lc 8.6 | Not readable |
| #33327D text on white | 11.09:1 | AAA | Lc 95.3 | Preferred for body text |
| #33327D text on black | 1.89:1 | Fails | Lc -7.3 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E8FC
oklch(93.5% 0.027 279.1)
-
Step 200
200
#D1D6FC
oklch(88.4% 0.053 279.4)
-
Step 300
300
#B3BBFC
oklch(80.9% 0.092 278.7)
-
Step 400
400
#8E95FB
oklch(70.8% 0.148 278.9)
-
Step 500
500
#7476F8
oklch(63% 0.19 278.8)
-
Step 600
600
#605BE7
oklch(55.7% 0.205 279)
-
Step 700
700
#5049C9
oklch(49.1% 0.192 279.1)
-
Step 800
800
#413DA2
oklch(42.7% 0.158 279.1)
-
Step 900
900 (this color)
#33327D
oklch(36.4% 0.124 278.9)
-
Step 950
950
#1F204B
oklch(26.9% 0.078 278.8)
#33327D 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) | #003F80 | 0.052 |
| Deuteranopia (no green cones) | #00397B | 0.049 |
| Tritanopia (no blue cones) | #084452 | 0.108 |
| Achromatopsia (no color) | #3C3C3C | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33327D
#33327D
oklch(36.4% 0.124 278.9)
- #483E00
#483E00
oklch(36.3% 0.075 99)
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 #33327D, 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 0.057
- Marine Blue #01386A ΔE 0.061
- Cobalt #1E488F ΔE 0.064
- Blueberry #464196 ΔE 0.065
- Prussian Blue #1D3557 ΔE 0.075
- Marine #042E60 ΔE 0.076
- Sapphire #2138AB ΔE 0.080
Use #33327D 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.