#2D327D
Closest named color: Twilight Blue (#0A437A). oklch(36% 0.125 275.3), rgb(45, 50, 125).
Aa
White text reads best on this color (11.26:1).
About this color
#2D327D is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.125 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.053 away. White text reads best on it, at 11.26:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.86:1 |
| White text | 11.26:1 |
Values
| HEX | #2D327D |
| RGB | rgb(45, 50, 125) |
| HSL | hsl(236, 47%, 33%) |
| OKLCH | oklch(36% 0.125 275.3) |
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 #2D327D | 11.26:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #2D327D | 1.86:1 | Fails | Lc 8.2 | Not readable |
| #2D327D text on white | 11.26:1 | AAA | Lc 95.7 | Preferred for body text |
| #2D327D text on black | 1.86:1 | Fails | Lc 0.0 | 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
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CFD7FC
oklch(88.5% 0.052 275.7)
-
Step 300
300
#AFBCFE
oklch(80.9% 0.095 275.5)
-
Step 400
400
#8796FD
oklch(70.6% 0.151 275.6)
-
Step 500
500
#6C78FB
oklch(63.1% 0.193 275.5)
-
Step 600
600
#565DEA
oklch(55.6% 0.209 275.1)
-
Step 700
700
#474BCB
oklch(49% 0.194 275.2)
-
Step 800
800
#3A3FA4
oklch(42.7% 0.16 275.2)
-
Step 900
900 (this color)
#2D327D
oklch(36% 0.125 275.3)
-
Step 950
950
#1C214C
oklch(27% 0.079 274.8)
#2D327D 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) | #003E80 | 0.044 |
| Deuteranopia (no green cones) | #00377B | 0.040 |
| Tritanopia (no blue cones) | #004452 | 0.106 |
| Achromatopsia (no color) | #3B3B3B | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D327D
#2D327D
oklch(36% 0.125 275.3)
- #493C00
#493C00
oklch(35.9% 0.074 95.2)
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 #2D327D, closest first.
No curated palette has a color within ΔE 0.04 of #2D327D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.053
- Marine Blue #01386A ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.059
- Cobalt #1E488F ΔE 0.063
- Marine #042E60 ΔE 0.070
- Blueberry #464196 ΔE 0.071
- Prussian Blue #1D3557 ΔE 0.072
- Midnight Blue #191970 ΔE 0.074
Use #2D327D 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.