#1D417A
Closest named color: Twilight Blue (#0A437A). oklch(38.2% 0.106 259.3), rgb(29, 65, 122).
Aa
White text reads best on this color (10.05:1).
About this color
#1D417A is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.106 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.013 away. White text reads best on it, at 10.05:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #1D417A |
| RGB | rgb(29, 65, 122) |
| HSL | hsl(217, 62%, 30%) |
| OKLCH | oklch(38.2% 0.106 259.3) |
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 #1D417A | 10.05:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #1D417A | 2.08:1 | Fails | Lc 10.9 | Not readable |
| #1D417A text on white | 10.05:1 | AAA | Lc 93.0 | Preferred for body text |
| #1D417A text on black | 2.08:1 | Fails | Lc -9.5 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DAF7
oklch(88.4% 0.045 259.9)
-
Step 300
300
#A2C2F4
oklch(80.8% 0.079 259.2)
-
Step 400
400
#70A1EF
oklch(70.7% 0.127 259.4)
-
Step 500
500
#4987EA
oklch(63.1% 0.163 259.4)
-
Step 600
600
#2B6ED8
oklch(55.5% 0.176 259.5)
-
Step 700
700
#1D5CBB
oklch(49.2% 0.163 259.1)
-
Step 800
800
#1A4B98
oklch(42.6% 0.137 259.4)
-
Step 900
900 (this color)
#1D417A
oklch(38.2% 0.106 259.3)
-
Step 950
950
#112647
oklch(27.1% 0.067 259.1)
#1D417A 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) | #24477C | 0.020 |
| Deuteranopia (no green cones) | #113E79 | 0.014 |
| Tritanopia (no blue cones) | #004E57 | 0.083 |
| Achromatopsia (no color) | #424242 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D417A
#1D417A
oklch(38.2% 0.106 259.3)
- #593D00
#593D00
oklch(38.2% 0.079 79.4)
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 #1D417A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.013
- Cobalt #1E488F ΔE 0.039
- Marine Blue #01386A ΔE 0.044
- Light Navy #155084 ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.060
- Dusk Blue #26538D ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.065
Use #1D417A 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.