#1E1957
Closest named color: Dark Indigo (#1F0954). oklch(26.5% 0.107 279.7), rgb(30, 25, 87).
Aa
White text reads best on this color (15.76:1).
About this color
#1E1957 is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.107 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.032 away. White text reads best on it, at 15.76:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.33:1 |
| White text | 15.76:1 |
Values
| HEX | #1E1957 |
| RGB | rgb(30, 25, 87) |
| HSL | hsl(245, 55%, 22%) |
| OKLCH | oklch(26.5% 0.107 279.7) |
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 #1E1957 | 15.76:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #1E1957 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #1E1957 text on white | 15.76:1 | AAA | Lc 102.4 | Preferred for body text |
| #1E1957 text on black | 1.33:1 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E8FF
oklch(93.6% 0.031 279.9)
-
Step 200
200
#D1D6FF
oklch(88.5% 0.057 279.7)
-
Step 300
300
#B4BAFF
oklch(80.9% 0.098 280.1)
-
Step 400
400
#8E93FF
oklch(70.6% 0.156 279.6)
-
Step 500
500
#7673FF
oklch(63.1% 0.202 279.9)
-
Step 600
600
#614CFF
oklch(55.5% 0.251 279.7)
-
Step 700
700
#532CEE
oklch(49.1% 0.262 279.9)
-
Step 800
800
#4329C0
oklch(42.8% 0.217 279.8)
-
Step 900
900
#362A97
oklch(37.7% 0.169 279.5)
-
Step 950
950 (this color)
#1E1957
oklch(26.5% 0.107 279.7)
#1E1957 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) | #002559 | 0.042 |
| Deuteranopia (no green cones) | #002056 | 0.037 |
| Tritanopia (no blue cones) | #002935 | 0.091 |
| Achromatopsia (no color) | #232323 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E1957
#1E1957
oklch(26.5% 0.107 279.7)
- #2C2500
#2C2500
oklch(26.4% 0.055 98.5)
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 #1E1957, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.032
- Midnight Blue #191970 ΔE 0.046
- Darkblue #030764 ΔE 0.060
- Marine #042E60 ΔE 0.060
- Navy Blue #001146 ΔE 0.063
- Dark Royal Blue #02066F ΔE 0.068
- Oxford Blue #1B263B ΔE 0.068
- Deep Blue #040273 ΔE 0.073
Use #1E1957 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.