#1D426B
Closest named color: Twilight Blue (#0A437A). oklch(37.4% 0.082 252.9), rgb(29, 66, 107).
Aa
White text reads best on this color (10.27:1).
About this color
#1D426B is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.082 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.027 away. White text reads best on it, at 10.27:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.04:1 |
| White text | 10.27:1 |
Values
| HEX | #1D426B |
| RGB | rgb(29, 66, 107) |
| HSL | hsl(212, 57%, 27%) |
| OKLCH | oklch(37.4% 0.082 252.9) |
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 #1D426B | 10.27:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #1D426B | 2.04:1 | Fails | Lc 10.3 | Not readable |
| #1D426B text on white | 10.27:1 | AAA | Lc 93.6 | Preferred for body text |
| #1D426B text on black | 2.04:1 | Fails | Lc -8.9 | 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
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A5C4E8
oklch(81% 0.061 252.4)
-
Step 400
400
#73A4DD
oklch(70.7% 0.099 252.9)
-
Step 500
500
#4D8CD4
oklch(63.1% 0.127 253.2)
-
Step 600
600
#2E75C1
oklch(55.6% 0.138 252.9)
-
Step 700
700
#2062A6
oklch(49.1% 0.127 252.6)
-
Step 800
800
#1D5087
oklch(42.7% 0.106 253)
-
Step 900
900 (this color)
#1D426B
oklch(37.4% 0.082 252.9)
-
Step 950
950
#12273F
oklch(26.9% 0.053 253.1)
#1D426B 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) | #30456D | 0.025 |
| Deuteranopia (no green cones) | #243D6A | 0.016 |
| Tritanopia (no blue cones) | #004C51 | 0.065 |
| Achromatopsia (no color) | #414141 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D426B
#1D426B
oklch(37.4% 0.082 252.9)
- #5A3900
#5A3900
oklch(37.5% 0.08 73.1)
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 #1D426B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.036
- Marine Blue #01386A ΔE 0.039
- Charcoal #264653 ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.053
- Light Navy #155084 ΔE 0.054
- Deep Sea Blue #015482 ΔE 0.060
Use #1D426B 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.