#1E395E
Closest named color: Prussian Blue (#1D3557). oklch(34.3% 0.073 256.7), rgb(30, 57, 94).
Aa
White text reads best on this color (11.65:1).
About this color
#1E395E is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.073 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.016 away. White text reads best on it, at 11.65:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.80:1 |
| White text | 11.65:1 |
Values
| HEX | #1E395E |
| RGB | rgb(30, 57, 94) |
| HSL | hsl(215, 52%, 24%) |
| OKLCH | oklch(34.3% 0.073 256.7) |
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 #1E395E | 11.65:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #1E395E | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #1E395E text on white | 11.65:1 | AAA | Lc 96.6 | Preferred for body text |
| #1E395E 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CDDAEE
oklch(88.5% 0.031 258.9)
-
Step 300
300
#AAC3E4
oklch(81% 0.054 255.4)
-
Step 400
400
#7DA3D7
oklch(70.8% 0.087 256.4)
-
Step 500
500
#5B8BCD
oklch(63.1% 0.113 256.6)
-
Step 600
600
#4174B9
oklch(55.6% 0.121 256.5)
-
Step 700
700
#3361A0
oklch(49.2% 0.113 256.8)
-
Step 800
800
#2B4F81
oklch(42.6% 0.093 257)
-
Step 900
900 (this color)
#1E395E
oklch(34.3% 0.073 256.7)
-
Step 950
950
#17273D
oklch(27% 0.047 256.6)
#1E395E 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) | #293C60 | 0.018 |
| Deuteranopia (no green cones) | #20365D | 0.009 |
| Tritanopia (no blue cones) | #004147 | 0.059 |
| Achromatopsia (no color) | #383838 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E395E
#1E395E
oklch(34.3% 0.073 256.7)
- #4D3300
#4D3300
oklch(34.3% 0.072 77.5)
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 #1E395E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.016
- Marine Blue #01386A ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.033
- Midnight Green #073B4C ΔE 0.040
- Marine #042E60 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.047
- Gunmetal #293241 ΔE 0.052
- Twilight Blue #0A437A ΔE 0.052
Use #1E395E 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.