#1E2D51
Closest named color: Prussian Blue (#1D3557). oklch(30.4% 0.068 265.5), rgb(30, 45, 81).
Aa
White text reads best on this color (13.55:1).
About this color
#1E2D51 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.068 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.026 away. White text reads best on it, at 13.55:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.54:1 |
| White text | 13.55:1 |
Values
| HEX | #1E2D51 |
| RGB | rgb(30, 45, 81) |
| HSL | hsl(222, 46%, 22%) |
| OKLCH | oklch(30.4% 0.068 265.5) |
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 #1E2D51 | 13.55:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #1E2D51 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #1E2D51 text on white | 13.55:1 | AAA | Lc 99.9 | Preferred for body text |
| #1E2D51 text on black | 1.54:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300
#A8C0F6
oklch(80.9% 0.081 266)
-
Step 400
400
#7A9EF1
oklch(70.8% 0.129 265.5)
-
Step 500
500
#5983EC
oklch(63.1% 0.164 265.5)
-
Step 600
600
#3F6ADB
oklch(55.7% 0.18 265.3)
-
Step 700
700
#3257BE
oklch(49.1% 0.168 265.6)
-
Step 800
800
#2A489A
oklch(42.8% 0.139 265.7)
-
Step 900
900
#253D7A
oklch(37.6% 0.108 265.4)
-
Step 950
950 (this color)
#1E2D51
oklch(30.4% 0.068 265.5)
#1E2D51 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) | #1E3152 | 0.013 |
| Deuteranopia (no green cones) | #172C50 | 0.010 |
| Tritanopia (no blue cones) | #00353B | 0.060 |
| Achromatopsia (no color) | #2E2E2E | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E2D51
#1E2D51
oklch(30.4% 0.068 265.5)
- #3D2C00
#3D2C00
oklch(30.5% 0.062 85.6)
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 #1E2D51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.033
- Marine #042E60 ΔE 0.034
- Gunmetal #293241 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.049
- Midnight Green #073B4C ΔE 0.051
- Marine Blue #01386A ΔE 0.052
Use #1E2D51 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.