#2D418D
Closest named color: Cobalt (#1E488F). oklch(40.4% 0.128 268.9), rgb(45, 65, 141).
Aa
White text reads best on this color (9.32:1).
About this color
#2D418D is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.128 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.022 away. White text reads best on it, at 9.32:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.25:1 |
| White text | 9.32:1 |
Values
| HEX | #2D418D |
| RGB | rgb(45, 65, 141) |
| HSL | hsl(228, 52%, 36%) |
| OKLCH | oklch(40.4% 0.128 268.9) |
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 #2D418D | 9.32:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #2D418D | 2.25:1 | Fails | Lc 12.8 | Not readable |
| #2D418D text on white | 9.32:1 | AAA | Lc 91.2 | Preferred for body text |
| #2D418D text on black | 2.25:1 | Fails | Lc -11.1 | 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 800.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F6
oklch(88.6% 0.042 269)
-
Step 300
300
#ADBFF2
oklch(80.9% 0.075 269.5)
-
Step 400
400
#829DEC
oklch(70.8% 0.12 268.9)
-
Step 500
500
#6482E5
oklch(63.1% 0.153 269)
-
Step 600
600
#4C69D4
oklch(55.6% 0.168 269)
-
Step 700
700
#3D57B7
oklch(49.1% 0.155 268.7)
-
Step 800
800 (this color)
#2D418D
oklch(40.4% 0.128 268.9)
-
Step 900
900
#2C3D76
oklch(37.7% 0.099 268.8)
-
Step 950
950
#1A2445
oklch(27% 0.063 269.2)
#2D418D 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) | #104B90 | 0.032 |
| Deuteranopia (no green cones) | #00438B | 0.032 |
| Tritanopia (no blue cones) | #005360 | 0.107 |
| Achromatopsia (no color) | #474747 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D418D
#2D418D
oklch(40.4% 0.128 268.9)
- #5B4600
#5B4600
oklch(40.5% 0.083 89.1)
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 #2D418D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.022
- Blueberry #464196 ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.039
- Twilight Blue #0A437A ΔE 0.045
- Light Navy #155084 ΔE 0.049
- Dusk Blue #26538D ΔE 0.050
- Sapphire #2138AB ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.063
Use #2D418D 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.