#1A376B
Closest named color: Marine Blue (#01386A). oklch(34.5% 0.097 261), rgb(26, 55, 107).
Aa
White text reads best on this color (11.64:1).
About this color
#1A376B is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.097 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.017 away. White text reads best on it, at 11.64:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.80:1 |
| White text | 11.64:1 |
Values
| HEX | #1A376B |
| RGB | rgb(26, 55, 107) |
| HSL | hsl(219, 61%, 26%) |
| OKLCH | oklch(34.5% 0.097 261) |
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 #1A376B | 11.64:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #1A376B | 1.80:1 | Fails | Lc 7.4 | Not readable |
| #1A376B text on white | 11.64:1 | AAA | Lc 96.5 | Preferred for body text |
| #1A376B text on black | 1.80:1 | 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 900.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CADAF5
oklch(88.5% 0.041 260.9)
-
Step 300
300
#A6C2F0
oklch(80.9% 0.072 260.3)
-
Step 400
400
#77A0E9
oklch(70.6% 0.117 261.4)
-
Step 500
500
#5387E3
oklch(63.1% 0.15 261)
-
Step 600
600
#386FD1
oklch(55.7% 0.162 260.9)
-
Step 700
700
#2B5CB5
oklch(49.1% 0.151 261.2)
-
Step 800
800
#244C92
oklch(42.8% 0.124 260.7)
-
Step 900
900 (this color)
#1A376B
oklch(34.5% 0.097 261)
-
Step 950
950
#142644
oklch(27% 0.061 260.1)
#1A376B 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) | #1C3C6D | 0.016 |
| Deuteranopia (no green cones) | #0A356A | 0.015 |
| Tritanopia (no blue cones) | #00434B | 0.078 |
| Achromatopsia (no color) | #383838 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A376B
#1A376B
oklch(34.5% 0.097 261)
- #4C3500
#4C3500
oklch(34.6% 0.071 81.7)
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 #1A376B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.017
- Prussian Blue #1D3557 ΔE 0.035
- Marine #042E60 ΔE 0.039
- Twilight Blue #0A437A ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.058
- Midnight Green #073B4C ΔE 0.062
- Dark Grey Blue #29465B ΔE 0.064
- Charcoal #264653 ΔE 0.073
Use #1A376B 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.