#1D476D
Closest named color: Twilight Blue (#0A437A). oklch(38.8% 0.08 248.6), rgb(29, 71, 109).
Aa
White text reads best on this color (9.65:1).
About this color
#1D476D is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.080 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.030 away. White text reads best on it, at 9.65:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.17:1 |
| White text | 9.65:1 |
Values
| HEX | #1D476D |
| RGB | rgb(29, 71, 109) |
| HSL | hsl(208, 58%, 27%) |
| OKLCH | oklch(38.8% 0.08 248.6) |
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 #1D476D | 9.65:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #1D476D | 2.17:1 | Fails | Lc 11.8 | Not readable |
| #1D476D text on white | 9.65:1 | AAA | Lc 92.1 | Preferred for body text |
| #1D476D text on black | 2.17:1 | Fails | Lc -10.3 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEF
oklch(88.6% 0.033 248.2)
-
Step 300
300
#A3C5E6
oklch(81% 0.059 247.8)
-
Step 400
400
#70A6DA
oklch(70.8% 0.096 248.4)
-
Step 500
500
#478ED0
oklch(63% 0.123 248.9)
-
Step 600
600
#2477BD
oklch(55.6% 0.133 248.7)
-
Step 700
700
#1564A3
oklch(49.1% 0.124 248.5)
-
Step 800
800
#165284
oklch(42.8% 0.102 248.5)
-
Step 900
900 (this color)
#1D476D
oklch(38.8% 0.08 248.6)
-
Step 950
950
#10283E
oklch(27% 0.051 248.4)
#1D476D 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) | #36496F | 0.030 |
| Deuteranopia (no green cones) | #2B416C | 0.021 |
| Tritanopia (no blue cones) | #005055 | 0.059 |
| Achromatopsia (no color) | #454545 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D476D
#1D476D
oklch(38.8% 0.08 248.6)
- #603B08
#603B08
oklch(38.8% 0.08 68.1)
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 #1D476D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.032
- Light Navy #155084 ΔE 0.043
- Charcoal #264653 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.047
- Marine Blue #01386A ΔE 0.053
- Cobalt #1E488F ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.060
Use #1D476D 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.