#1D426F
Closest named color: Twilight Blue (#0A437A). oklch(37.6% 0.088 254.8), rgb(29, 66, 111).
Aa
White text reads best on this color (10.18:1).
About this color
#1D426F is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.088 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.021 away. White text reads best on it, at 10.18:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.06:1 |
| White text | 10.18:1 |
Values
| HEX | #1D426F |
| RGB | rgb(29, 66, 111) |
| HSL | hsl(213, 59%, 27%) |
| OKLCH | oklch(37.6% 0.088 254.8) |
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 #1D426F | 10.18:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #1D426F | 2.06:1 | Fails | Lc 10.5 | Not readable |
| #1D426F text on white | 10.18:1 | AAA | Lc 93.4 | Preferred for body text |
| #1D426F text on black | 2.06:1 | Fails | Lc -9.1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C9DBF2
oklch(88.5% 0.037 254.6)
-
Step 300
300
#A4C3EB
oklch(80.8% 0.066 254.9)
-
Step 400
400
#72A3E2
oklch(70.6% 0.107 255.1)
-
Step 500
500
#4C8BD9
oklch(63.1% 0.135 254.9)
-
Step 600
600
#2D73C7
oklch(55.5% 0.148 255.1)
-
Step 700
700
#1F60AC
oklch(49% 0.138 255.1)
-
Step 800
800
#1C4F8B
oklch(42.7% 0.113 254.8)
-
Step 900
900 (this color)
#1D426F
oklch(37.6% 0.088 254.8)
-
Step 950
950
#122741
oklch(27% 0.056 254.8)
#1D426F 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) | #2D4571 | 0.021 |
| Deuteranopia (no green cones) | #213E6E | 0.012 |
| Tritanopia (no blue cones) | #004C53 | 0.068 |
| Achromatopsia (no color) | #414141 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D426F
#1D426F
oklch(37.6% 0.088 254.8)
- #5A3A00
#5A3A00
oklch(37.7% 0.08 74.4)
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 #1D426F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.021
- Marine Blue #01386A ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.041
- Light Navy #155084 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.053
- Charcoal #264653 ΔE 0.054
- Cobalt #1E488F ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.057
Use #1D426F 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.