#2E4570
Closest named color: Twilight Blue (#0A437A). oklch(39.3% 0.079 262), rgb(46, 69, 112).
Aa
White text reads best on this color (9.53:1).
About this color
#2E4570 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.079 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.035 away. White text reads best on it, at 9.53:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.20:1 |
| White text | 9.53:1 |
Values
| HEX | #2E4570 |
| RGB | rgb(46, 69, 112) |
| HSL | hsl(219, 42%, 31%) |
| OKLCH | oklch(39.3% 0.079 262) |
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 #2E4570 | 9.53:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #2E4570 | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #2E4570 text on white | 9.53:1 | AAA | Lc 91.9 | Preferred for body text |
| #2E4570 text on black | 2.20:1 | Fails | Lc -10.4 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CDDAF0
oklch(88.5% 0.033 261)
-
Step 300
300
#ACC1E8
oklch(80.8% 0.06 262.8)
-
Step 400
400
#80A1DC
oklch(70.7% 0.094 261.7)
-
Step 500
500
#6088D2
oklch(63% 0.121 261.9)
-
Step 600
600
#4771BF
oklch(55.6% 0.13 261.7)
-
Step 700
700
#395EA5
oklch(49.1% 0.122 262.1)
-
Step 800
800
#2F4D86
oklch(42.7% 0.101 262)
-
Step 900
900 (this color)
#2E4570
oklch(39.3% 0.079 262)
-
Step 950
950
#19263F
oklch(27% 0.05 262.6)
#2E4570 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) | #334972 | 0.015 |
| Deuteranopia (no green cones) | #2B436F | 0.008 |
| Tritanopia (no blue cones) | #034E55 | 0.070 |
| Achromatopsia (no color) | #454545 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E4570
#2E4570
oklch(39.3% 0.079 262)
- #5B4104
#5B4104
oklch(39.4% 0.079 81.9)
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 #2E4570, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.039
- Light Navy #155084 ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.052
- Cobalt #1E488F ΔE 0.052
- Charcoal #264653 ΔE 0.053
- Dusk Blue #26538D ΔE 0.057
- Marine Blue #01386A ΔE 0.060
Use #2E4570 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.