#1E2F4C
Closest named color: Prussian Blue (#1D3557). oklch(30.6% 0.057 260.6), rgb(30, 47, 76).
Aa
White text reads best on this color (13.40:1).
About this color
#1E2F4C is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.057 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.025 away. White text reads best on it, at 13.40:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.56:1 |
| White text | 13.40:1 |
Values
| HEX | #1E2F4C |
| RGB | rgb(30, 47, 76) |
| HSL | hsl(218, 43%, 21%) |
| OKLCH | oklch(30.6% 0.057 260.6) |
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 #1E2F4C | 13.40:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #1E2F4C | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #1E2F4C text on white | 13.40:1 | AAA | Lc 99.7 | Preferred for body text |
| #1E2F4C text on black | 1.56:1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CBDAF3
oklch(88.5% 0.038 260.7)
-
Step 300
300
#A8C2ED
oklch(80.9% 0.067 260.4)
-
Step 400
400
#79A1E4
oklch(70.7% 0.108 260.4)
-
Step 500
500
#5788DD
oklch(63.2% 0.139 260.7)
-
Step 600
600
#3C70CA
oklch(55.6% 0.15 260.6)
-
Step 700
700
#2E5DAF
oklch(49.1% 0.141 260.7)
-
Step 800
800
#274D8E
oklch(42.8% 0.116 260.4)
-
Step 900
900
#244071
oklch(37.6% 0.091 260.8)
-
Step 950
950 (this color)
#1E2F4C
oklch(30.6% 0.057 260.6)
#1E2F4C 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) | #23314D | 0.010 |
| Deuteranopia (no green cones) | #1E2D4B | 0.006 |
| Tritanopia (no blue cones) | #04353A | 0.050 |
| Achromatopsia (no color) | #2F2F2F | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E2F4C
#1E2F4C
oklch(30.6% 0.057 260.6)
- #3E2C06
#3E2C06
oklch(30.7% 0.058 81.6)
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 #1E2F4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.025
- Gunmetal #293241 ΔE 0.029
- Oxford Blue #1B263B ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.040
- Midnight Green #073B4C ΔE 0.042
- Marine #042E60 ΔE 0.042
- Dark #1B2431 ΔE 0.056
Use #1E2F4C 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.