#1D3254
Closest named color: Prussian Blue (#1D3557). oklch(31.8% 0.067 259.6), rgb(29, 50, 84).
Aa
White text reads best on this color (12.83:1).
About this color
#1D3254 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.067 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.010 away. White text reads best on it, at 12.83:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.63:1 |
| White text | 12.83:1 |
Values
| HEX | #1D3254 |
| RGB | rgb(29, 50, 84) |
| HSL | hsl(217, 49%, 22%) |
| OKLCH | oklch(31.8% 0.067 259.6) |
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 #1D3254 | 12.83:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #1D3254 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #1D3254 text on white | 12.83:1 | AAA | Lc 98.8 | Preferred for body text |
| #1D3254 text on black | 1.63:1 | Fails | Lc 0.0 | 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 950.
-
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
#A3C2F4
oklch(80.9% 0.079 259.9)
-
Step 400
400
#70A1EF
oklch(70.7% 0.127 259.4)
-
Step 500
500
#4A87EA
oklch(63.1% 0.162 259.6)
-
Step 600
600
#2C6ED8
oklch(55.6% 0.176 259.7)
-
Step 700
700
#1F5BBB
oklch(49% 0.164 259.8)
-
Step 800
800
#1C4B98
oklch(42.7% 0.136 259.9)
-
Step 900
900
#1C4079
oklch(37.8% 0.106 259.3)
-
Step 950
950 (this color)
#1D3254
oklch(31.8% 0.067 259.6)
#1D3254 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) | #243555 | 0.014 |
| Deuteranopia (no green cones) | #1C3053 | 0.007 |
| Tritanopia (no blue cones) | #003A3F | 0.057 |
| Achromatopsia (no color) | #323232 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D3254
#1D3254
oklch(31.8% 0.067 259.6)
- #442E00
#442E00
oklch(31.9% 0.066 79.9)
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 #1D3254, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.010
- Marine #042E60 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.036
- Space Cadet #2B2D42 ΔE 0.036
- Gunmetal #293241 ΔE 0.037
- Midnight Green #073B4C ΔE 0.039
- Marine Blue #01386A ΔE 0.042
- Oxford Blue #1B263B ΔE 0.055
Use #1D3254 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.