#1D415B
Closest named color: Dark Grey Blue (#29465B). oklch(36.2% 0.061 242.5), rgb(29, 65, 91).
Aa
White text reads best on this color (10.71:1).
About this color
#1D415B is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.061 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.022 away. White text reads best on it, at 10.71:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.95:1 |
| White text | 10.71:1 |
Values
| HEX | #1D415B |
| RGB | rgb(29, 65, 91) |
| HSL | hsl(205, 52%, 24%) |
| OKLCH | oklch(36.2% 0.061 242.5) |
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 #1D415B | 10.71:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #1D415B | 1.95:1 | Fails | Lc 9.2 | Not readable |
| #1D415B text on white | 10.71:1 | AAA | Lc 94.7 | Preferred for body text |
| #1D415B text on black | 1.95:1 | Fails | Lc -7.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CBDCE9
oklch(88.6% 0.026 240.7)
-
Step 300
300
#A8C5DC
oklch(80.9% 0.045 242.1)
-
Step 400
400
#78A7CB
oklch(70.8% 0.073 242)
-
Step 500
500
#5390BE
oklch(63.1% 0.094 242.8)
-
Step 600
600
#357AAA
oklch(55.7% 0.102 242.2)
-
Step 700
700
#276692
oklch(49.1% 0.095 242.8)
-
Step 800
800
#225376
oklch(42.6% 0.079 242.8)
-
Step 900
900 (this color)
#1D415B
oklch(36.2% 0.061 242.5)
-
Step 950
950
#142938
oklch(27.1% 0.039 241.3)
#1D415B 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) | #35415C | 0.029 |
| Deuteranopia (no green cones) | #2D3B5B | 0.025 |
| Tritanopia (no blue cones) | #00474A | 0.045 |
| Achromatopsia (no color) | #3E3E3E | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D415B
#1D415B
oklch(36.2% 0.061 242.5)
- #543618
#543618
oklch(36.2% 0.061 63.6)
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 #1D415B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.022
- Charcoal #264653 ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.027
- Midnight Green #073B4C ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.038
- Marine Blue #01386A ΔE 0.048
- Onyx #343A40 ΔE 0.051
- Twilight Blue #0A437A ΔE 0.053
Use #1D415B 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.