#234680
Closest named color: Twilight Blue (#0A437A). oklch(40% 0.106 259.9), rgb(35, 70, 128).
Aa
White text reads best on this color (9.29:1).
About this color
#234680 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.106 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.024 away. White text reads best on it, at 9.29:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.25:1 |
| White text | 9.29:1 |
Values
| HEX | #234680 |
| RGB | rgb(35, 70, 128) |
| HSL | hsl(217, 57%, 32%) |
| OKLCH | oklch(40% 0.106 259.9) |
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 #234680 | 9.29:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #234680 | 2.25:1 | Fails | Lc 12.8 | Not readable |
| #234680 text on white | 9.29:1 | AAA | Lc 91.2 | Preferred for body text |
| #234680 text on black | 2.25:1 | Fails | Lc -11.2 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DAF7
oklch(88.4% 0.045 259.9)
-
Step 300
300
#A3C2F5
oklch(80.9% 0.08 260.3)
-
Step 400
400
#71A1EF
oklch(70.8% 0.126 259.8)
-
Step 500
500
#4B87EA
oklch(63.2% 0.162 259.9)
-
Step 600
600
#2D6ED8
oklch(55.6% 0.176 259.9)
-
Step 700
700
#205BBC
oklch(49.1% 0.165 260.1)
-
Step 800
800
#1C4B98
oklch(42.7% 0.136 259.9)
-
Step 900
900 (this color)
#234680
oklch(40% 0.106 259.9)
-
Step 950
950
#122647
oklch(27.2% 0.067 259.9)
#234680 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) | #2A4C82 | 0.020 |
| Deuteranopia (no green cones) | #19437F | 0.014 |
| Tritanopia (no blue cones) | #00535C | 0.084 |
| Achromatopsia (no color) | #474747 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234680
#234680
oklch(40% 0.106 259.9)
- #5F4200
#5F4200
oklch(40.1% 0.083 80.2)
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 #234680, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.024
- Cobalt #1E488F ΔE 0.025
- Light Navy #155084 ΔE 0.029
- Dusk Blue #26538D ΔE 0.042
- Deep Sea Blue #015482 ΔE 0.042
- Dark Slate Blue #483D8B ΔE 0.057
- Blueberry #464196 ΔE 0.061
- Light Navy Blue #2E5A88 ΔE 0.062
Use #234680 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.