#1E2B79
Closest named color: Midnight Blue (#191970). oklch(33.3% 0.133 270.1), rgb(30, 43, 121).
Aa
White text reads best on this color (12.52:1).
About this color
#1E2B79 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.133 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.046 away. White text reads best on it, at 12.52:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.67:1 |
| White text | 12.52:1 |
Values
| HEX | #1E2B79 |
| RGB | rgb(30, 43, 121) |
| HSL | hsl(231, 60%, 30%) |
| OKLCH | oklch(33.3% 0.133 270.1) |
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 #1E2B79 | 12.52:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #1E2B79 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #1E2B79 text on white | 12.52:1 | AAA | Lc 97.9 | Preferred for body text |
| #1E2B79 text on black | 1.67:1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FE
oklch(93.5% 0.029 271.1)
-
Step 200
200
#CBD8FF
oklch(88.5% 0.056 270.7)
-
Step 300
300
#A9BEFF
oklch(80.9% 0.095 270.4)
-
Step 400
400
#7C99FF
oklch(70.6% 0.153 270.2)
-
Step 500
500
#5D7BFF
oklch(63% 0.198 270.2)
-
Step 600
600
#465EF2
oklch(55.5% 0.222 270.3)
-
Step 700
700
#384CD3
oklch(49% 0.207 270.1)
-
Step 800
800
#2E40AA
oklch(42.7% 0.17 270.1)
-
Step 900
900 (this color)
#1E2B79
oklch(33.3% 0.133 270.1)
-
Step 950
950
#17224F
oklch(27.1% 0.084 269.7)
#1E2B79 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) | #00387C | 0.036 |
| Deuteranopia (no green cones) | #002F77 | 0.024 |
| Tritanopia (no blue cones) | #003F4D | 0.107 |
| Achromatopsia (no color) | #343434 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E2B79
#1E2B79
oklch(33.3% 0.133 270.1)
- #443400
#443400
oklch(33.3% 0.068 89.7)
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 #1E2B79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.046
- Marine Blue #01386A ΔE 0.048
- Marine #042E60 ΔE 0.051
- Royal #0C1793 ΔE 0.061
- Twilight Blue #0A437A ΔE 0.065
- Prussian Blue #1D3557 ΔE 0.069
- Dark Blue #00008B ΔE 0.082
- Navy #000080 ΔE 0.084
Use #1E2B79 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.