#2E347F
Closest named color: Twilight Blue (#0A437A). oklch(36.6% 0.125 274.9), rgb(46, 52, 127).
Aa
White text reads best on this color (10.97:1).
About this color
#2E347F is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.125 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.050 away. White text reads best on it, at 10.97:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.91:1 |
| White text | 10.97:1 |
Values
| HEX | #2E347F |
| RGB | rgb(46, 52, 127) |
| HSL | hsl(236, 47%, 34%) |
| OKLCH | oklch(36.6% 0.125 274.9) |
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 #2E347F | 10.97:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #2E347F | 1.91:1 | Fails | Lc 8.9 | Not readable |
| #2E347F text on white | 10.97:1 | AAA | Lc 95.1 | Preferred for body text |
| #2E347F text on black | 1.91:1 | Fails | Lc -7.6 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CED7FC
oklch(88.4% 0.052 274.5)
-
Step 300
300
#AEBCFE
oklch(80.8% 0.095 274.8)
-
Step 400
400
#8697FD
oklch(70.8% 0.15 274.8)
-
Step 500
500
#6B79FB
oklch(63.2% 0.192 274.9)
-
Step 600
600
#565DEA
oklch(55.6% 0.209 275.1)
-
Step 700
700
#474CCB
oklch(49.2% 0.193 275)
-
Step 800
800
#3A3FA4
oklch(42.7% 0.16 275.2)
-
Step 900
900 (this color)
#2E347F
oklch(36.6% 0.125 274.9)
-
Step 950
950
#1C214C
oklch(27% 0.079 274.8)
#2E347F 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) | #004082 | 0.044 |
| Deuteranopia (no green cones) | #00397D | 0.040 |
| Tritanopia (no blue cones) | #004654 | 0.106 |
| Achromatopsia (no color) | #3C3C3C | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E347F
#2E347F
oklch(36.6% 0.125 274.9)
- #4B3E00
#4B3E00
oklch(36.7% 0.075 95.6)
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 #2E347F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.054
- Marine Blue #01386A ΔE 0.057
- Cobalt #1E488F ΔE 0.058
- Blueberry #464196 ΔE 0.065
- Marine #042E60 ΔE 0.074
- Sapphire #2138AB ΔE 0.074
- Prussian Blue #1D3557 ΔE 0.075
Use #2E347F 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.