#1D4793
Closest named color: Cobalt (#1E488F). oklch(41.4% 0.134 261.1), rgb(29, 71, 147).
Aa
White text reads best on this color (8.84:1).
About this color
#1D4793 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.134 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.008 away. White text reads best on it, at 8.84:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.37:1 |
| White text | 8.84:1 |
Values
| HEX | #1D4793 |
| RGB | rgb(29, 71, 147) |
| HSL | hsl(219, 67%, 35%) |
| OKLCH | oklch(41.4% 0.134 261.1) |
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 #1D4793 | 8.84:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #1D4793 | 2.37:1 | Fails | Lc 14.2 | Not readable |
| #1D4793 text on white | 8.84:1 | AAA | Lc 89.8 | Fine for body text |
| #1D4793 text on black | 2.37:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF7
oklch(88.5% 0.044 261.2)
-
Step 300
300
#A4C2F4
oklch(81% 0.078 260.5)
-
Step 400
400
#73A0EE
oklch(70.6% 0.125 260.9)
-
Step 500
500
#4F86E9
oklch(63.1% 0.16 261.2)
-
Step 600
600
#336DD7
oklch(55.5% 0.174 261.2)
-
Step 700
700
#265BBB
oklch(49.2% 0.162 261.1)
-
Step 800
800 (this color)
#1D4793
oklch(41.4% 0.134 261.1)
-
Step 900
900
#1F3F78
oklch(37.6% 0.105 261)
-
Step 950
950
#132546
oklch(26.9% 0.066 261.5)
#1D4793 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) | #175096 | 0.025 |
| Deuteranopia (no green cones) | #004591 | 0.018 |
| Tritanopia (no blue cones) | #005966 | 0.103 |
| Achromatopsia (no color) | #4A4A4A | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D4793
#1D4793
oklch(41.4% 0.134 261.1)
- #634600
#634600
oklch(41.5% 0.086 81.5)
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 #1D4793, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.008
- Light Navy #155084 ΔE 0.039
- Dusk Blue #26538D ΔE 0.039
- Twilight Blue #0A437A ΔE 0.046
- Blueberry #464196 ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.051
- Sapphire #2138AB ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.057
Use #1D4793 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.