#1D476B
Closest named color: Dark Grey Blue (#29465B). oklch(38.7% 0.077 247.3), rgb(29, 71, 107).
Aa
White text reads best on this color (9.69:1).
About this color
#1D476B is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.077 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.028 away. White text reads best on it, at 9.69:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.16:1 |
| White text | 9.69:1 |
Values
| HEX | #1D476B |
| RGB | rgb(29, 71, 107) |
| HSL | hsl(208, 57%, 27%) |
| OKLCH | oklch(38.7% 0.077 247.3) |
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 #1D476B | 9.69:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #1D476B | 2.16:1 | Fails | Lc 11.7 | Not readable |
| #1D476B text on white | 9.69:1 | AAA | Lc 92.2 | Preferred for body text |
| #1D476B text on black | 2.16:1 | Fails | Lc -10.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEE
oklch(88.6% 0.032 246.7)
-
Step 300
300
#A3C5E5
oklch(80.9% 0.058 247)
-
Step 400
400
#70A6D8
oklch(70.7% 0.093 247.4)
-
Step 500
500
#488FCD
oklch(63.2% 0.118 247.3)
-
Step 600
600
#2578BA
oklch(55.6% 0.128 247.3)
-
Step 700
700
#1664A0
oklch(49% 0.12 247.5)
-
Step 800
800
#165282
oklch(42.7% 0.099 247.5)
-
Step 900
900 (this color)
#1D476B
oklch(38.7% 0.077 247.3)
-
Step 950
950
#11283D
oklch(26.9% 0.049 248.1)
#1D476B 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) | #37486D | 0.030 |
| Deuteranopia (no green cones) | #2C416A | 0.022 |
| Tritanopia (no blue cones) | #005054 | 0.058 |
| Achromatopsia (no color) | #444444 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D476B
#1D476B
oklch(38.7% 0.077 247.3)
- #5F3B0D
#5F3B0D
oklch(38.7% 0.077 67.4)
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 #1D476B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.028
- Twilight Blue #0A437A ΔE 0.033
- Charcoal #264653 ΔE 0.041
- Light Navy #155084 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.049
- Marine Blue #01386A ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.058
- Cobalt #1E488F ΔE 0.061
Use #1D476B 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.