#2D3E94
Closest named color: Cobalt (#1E488F). oklch(40.3% 0.142 270.3), rgb(45, 62, 148).
Aa
White text reads best on this color (9.42:1).
About this color
#2D3E94 is a dark, vivid blue. In OKLCH its lightness is 40%, its chroma 0.142 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.030 away. White text reads best on it, at 9.42:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #2D3E94 |
| RGB | rgb(45, 62, 148) |
| HSL | hsl(230, 53%, 38%) |
| OKLCH | oklch(40.3% 0.142 270.3) |
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 #2D3E94 | 9.42:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #2D3E94 | 2.22:1 | Fails | Lc 12.6 | Not readable |
| #2D3E94 text on white | 9.42:1 | AAA | Lc 91.4 | Preferred for body text |
| #2D3E94 text on black | 2.22:1 | Fails | Lc -11.0 | 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 800.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3E9FB
oklch(93.5% 0.025 271.1)
-
Step 200
200
#CDD8F9
oklch(88.4% 0.047 270.8)
-
Step 300
300
#ACBFF7
oklch(81% 0.082 270)
-
Step 400
400
#819BF3
oklch(70.7% 0.132 270.3)
-
Step 500
500
#637FEF
oklch(63% 0.17 270.3)
-
Step 600
600
#4C65DE
oklch(55.5% 0.186 270.4)
-
Step 700
700
#3E53C0
oklch(49% 0.172 270.5)
-
Step 800
800 (this color)
#2D3E94
oklch(40.3% 0.142 270.3)
-
Step 900
900
#2C3B7C
oklch(37.7% 0.111 270.5)
-
Step 950
950
#1A2348
oklch(27% 0.07 270.8)
#2D3E94 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) | #004B97 | 0.041 |
| Deuteranopia (no green cones) | #004292 | 0.032 |
| Tritanopia (no blue cones) | #005362 | 0.117 |
| Achromatopsia (no color) | #464646 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D3E94
#2D3E94
oklch(40.3% 0.142 270.3)
- #5A4600
#5A4600
oklch(40.4% 0.083 90)
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 #2D3E94, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.030
- Blueberry #464196 ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.042
- Sapphire #2138AB ΔE 0.043
- Twilight Blue #0A437A ΔE 0.056
- Dusk Blue #26538D ΔE 0.060
- Light Navy #155084 ΔE 0.061
- Deep Sea Blue #015482 ΔE 0.074
Use #2D3E94 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.