#2E25A4
Closest named color: Indigo Blue (#3A18B1). oklch(37.7% 0.192 275.1), rgb(46, 37, 164).
Aa
White text reads best on this color (10.95:1).
About this color
#2E25A4 is a dark, vivid blue. In OKLCH its lightness is 38%, its chroma 0.192 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Indigo Blue (#3A18B1), ΔE 0.029 away. White text reads best on it, at 10.95:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | vivid (0.192) |
| Temperature | cool |
| Nearest name | Indigo Blue (#3A18B1) |
| Black text | 1.91:1 |
| White text | 10.95:1 |
Values
| HEX | #2E25A4 |
| RGB | rgb(46, 37, 164) |
| HSL | hsl(244, 63%, 39%) |
| OKLCH | oklch(37.7% 0.192 275.1) |
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 #2E25A4 | 10.95:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #2E25A4 | 1.91:1 | Fails | Lc 9.6 | Not readable |
| #2E25A4 text on white | 10.95:1 | AAA | Lc 94.3 | Preferred for body text |
| #2E25A4 text on black | 1.91:1 | Fails | Lc -8.3 | 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
#E3E9FF
oklch(93.6% 0.03 273.6)
-
Step 200
200
#CED7FF
oklch(88.5% 0.056 275.2)
-
Step 300
300
#AEBCFF
oklch(80.9% 0.096 274.9)
-
Step 400
400
#8696FF
oklch(70.7% 0.154 275.2)
-
Step 500
500
#6B77FF
oklch(63.1% 0.199 275.3)
-
Step 600
600
#5453FF
oklch(55.7% 0.246 275.1)
-
Step 700
700
#471FFF
oklch(49.1% 0.29 275.3)
-
Step 800
800
#391DD1
oklch(42.7% 0.246 275.2)
-
Step 900
900 (this color)
#2E25A4
oklch(37.7% 0.192 275.1)
-
Step 950
950
#1A1960
oklch(27.1% 0.121 275.3)
#2E25A4 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) | #0042A8 | 0.063 |
| Deuteranopia (no green cones) | #0037A2 | 0.045 |
| Tritanopia (no blue cones) | #004B63 | 0.152 |
| Achromatopsia (no color) | #3C3C3C | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E25A4
#2E25A4
oklch(37.7% 0.192 275.1)
- #4F4100
#4F4100
oklch(37.9% 0.078 95.1)
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 #2E25A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo Blue #3A18B1 ΔE 0.029
- Sapphire #2138AB ΔE 0.039
- Ultramarine #2000B1 ΔE 0.048
- Imperial Purple #480CA8 ΔE 0.050
- Royal #0C1793 ΔE 0.062
- Cobalt Blue #030AA7 ΔE 0.064
- Chrysanthemum #560BAD ΔE 0.075
- Majorelle Blue #3F37C9 ΔE 0.078
Use #2E25A4 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.