#1A2B71
Closest named color: Marine (#042E60). oklch(32.3% 0.123 268.2), rgb(26, 43, 113).
Aa
White text reads best on this color (12.89:1).
About this color
#1A2B71 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.123 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.037 away. White text reads best on it, at 12.89:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.62:1 |
| White text | 12.89:1 |
Values
| HEX | #1A2B71 |
| RGB | rgb(26, 43, 113) |
| HSL | hsl(228, 63%, 27%) |
| OKLCH | oklch(32.3% 0.123 268.2) |
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 #1A2B71 | 12.89:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #1A2B71 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #1A2B71 text on white | 12.89:1 | AAA | Lc 98.6 | Preferred for body text |
| #1A2B71 text on black | 1.62:1 | 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
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A6BFFF
oklch(80.9% 0.095 267.8)
-
Step 400
400
#789AFF
oklch(70.6% 0.153 268.3)
-
Step 500
500
#587DFF
oklch(63.1% 0.197 268.3)
-
Step 600
600
#3B5BFF
oklch(55.6% 0.244 268.3)
-
Step 700
700
#2A31FF
oklch(49.2% 0.286 268.3)
-
Step 800
800
#2127D3
oklch(42.6% 0.248 268.3)
-
Step 900
900
#1B2BA6
oklch(37.8% 0.194 268.1)
-
Step 950
950 (this color)
#1A2B71
oklch(32.3% 0.123 268.2)
#1A2B71 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) | #003673 | 0.032 |
| Deuteranopia (no green cones) | #002E70 | 0.020 |
| Tritanopia (no blue cones) | #003D49 | 0.099 |
| Achromatopsia (no color) | #323232 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A2B71
#1A2B71
oklch(32.3% 0.123 268.2)
- #423100
#423100
oklch(32.3% 0.066 87.5)
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 #1A2B71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.037
- Marine Blue #01386A ΔE 0.041
- Midnight Blue #191970 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.058
- Twilight Blue #0A437A ΔE 0.067
- Royal #0C1793 ΔE 0.070
- Dark Royal Blue #02066F ΔE 0.083
- Deep Blue #040273 ΔE 0.084
Use #1A2B71 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.